Porto (English Wikipedia)

Menéndez Pidal, Ramón (1906). PRIMERA CRÓNICA GENERAL. ESTORIA DE ESPAÑA DE ALFONSO X (2022 ed.). Biblioteca Digital de Castilla y León. p. 357. Archived from the original on 2 October 2024. Retrieved 10 June 2023.

bomdia.eu (Global: low place; English: low place)

"HC Porto estreia Portugal na liga espanhola de hóquei no gelo" (in Portuguese). BomDia.eu. 5 October 2023. Retrieved 21 November 2024.

books.google.com (Global: 3^rd place; English: 3^rd place)

Porter, Darwin; Prince, Danforth (1995). Frommer's Portugal. John Wiley & Sons, Incorporated. p. 325. ISBN 978-0-02-860709-2. Retrieved 22 August 2025.
Sá, Bárbara (2023). "The Tragedy of Ponte das Barcas". In Pascoal, Sara Cerqueira; Tallone, Laura; Furtado, Marco (eds.). Dark Heritage Tourism in the Iberian Peninsula: Memories of Tragedy and Death. Cambridge Scholars Publishing. p. 282. ISBN 978-1-5275-0097-6. Retrieved 22 August 2025.
Monge-Barrio, Aurora; Gutiérrez, Ana Sánchez-Ostiz (9 February 2018). Passive Energy Strategies for Mediterranean Residential Buildings: Facing the Challenges of Climate Change and Vulnerable Populations. Springer. ISBN 9783319698830. Archived from the original on 2 October 2024. Retrieved 19 October 2020.

britannica.com (Global: 37^th place; English: 64^th place)

"Treaty of Windsor – British-Portugal". britannica.com. Archived from the original on 26 February 2014. Retrieved 10 February 2016.

citypopulation.de (Global: 99^th place; English: 341^st place)

Thomas Brinkoff, Principal Agglomerations of the World Archived 4 July 2010 at the Wayback Machine, Retrieved 12 March 2009. Data for 1 January 2009.

clix.pt (Global: low place; English: low place)

publico.clix.pt

Ribeiro, Pedro (19 July 2011). "Índice de competitividade coloca Évora no topo e Porto em último". Público. Archived from the original on 11 March 2007. Retrieved 22 August 2025.

jornal.publico.clix.pt

Coentrão, Abel Quanto vale o Grande Porto? Archived 2007-03-11 at the Wayback Machine — Publico.pt

cm-gondomar.pt (Global: low place; English: low place)

"UNIR - Nova rede metropolitana de autocarros". Cm-gondomar.pt. Retrieved 9 June 2026.

collinsdictionary.com (Global: 1,831^st place; English: 1,216^th place)

"Oporto". Collins English Dictionary. HarperCollins. Archived from the original on 1 June 2019. Retrieved 1 June 2019.

creativecommons.org (Global: 580^th place; English: 287^th place)

"Porto Public Transportation Statistics". Global Public Transit Index by Moovit. Archived from the original on 1 September 2017. Retrieved 19 June 2017. Material was copied from this source, which is available under a Creative Commons Attribution 4.0 International License Archived 16 October 2017 at the Wayback Machine.

demographia.com (Global: 3,406^th place; English: 9,051^st place)

Demographia: World Urban Areas Archived 3 May 2018 at the Wayback Machine, March 2010

do-tours.com (Global: low place; English: low place)

Tours, Do. "Les Nouveautés Do Tours | Do Tours". Archived from the original on 16 June 2020. Retrieved 23 January 2020.

doi.org (Global: 2^nd place; English: 2^nd place)

"Pakenham, Thomas Frank Dermot, (born 14 Aug. 1933), writer", Who's Who, Oxford University Press, 1 December 2007, retrieved 15 May 2026

dre.pt (Global: 1,800^th place; English: 4,309^th place)

"Law nr. 11-A/2013, pages 552 99–100" (PDF). Diário da República (in Portuguese). Archived (PDF) from the original on 6 December 2013. Retrieved 29 July 2014.

dsporto.de (Global: low place; English: low place)

"1901–1921". Dsporto.de. Archived from the original on 2 October 2024. Retrieved 12 August 2017.

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portugal.embassyhomepage.com

"Portugal International Dialing Code". Archived from the original on 30 April 2010. Retrieved 12 September 2010.

en.wikisource.org (Global: 82^nd place; English: 41^st place)

Chisholm, Hugh, ed. (1911). "Oporto" . Encyclopædia Britannica. Vol. 20 (11th ed.). Cambridge University Press. pp. 137–139.
Beazley, Charles Raymond (1911). "Henry of Portugal" . Encyclopædia Britannica. Vol. 13 (11th ed.). pp. 296–297.
Beazley, Charles Raymond (1911). "Magellan, Ferdinand" . Encyclopædia Britannica. Vol. 17 (11th ed.). pp. 302–304.
"Charles Albert" . Encyclopædia Britannica. Vol. 5 (11th ed.). 1911. pp. 938–939.

escolaballetpirmin.com (Global: low place; English: low place)

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espon.eu (Global: low place; English: low place)

European Spatial Planning Observation Network, Study on Urban Functions (Project 1.4.3), Final Report, Chapter 3, (ESPON, 2007) Archived 28 July 2009 at the Wayback Machine

etymonline.com (Global: 669^th place; English: 670^th place)

Harper, Douglas. "port". Online Etymology Dictionary.
"Online Etymology Dictionary". Archived from the original on 8 May 2016. Retrieved 18 December 2006.

europa.eu (Global: 62^nd place; English: 100^th place)

ecb.europa.eu

"US dollar (USD)". ecb.pt. Archived from the original on 1 December 2023. Retrieved 2 December 2023.

expresso.pt (Global: 4,014^th place; English: 4,699^th place)

clix.semanal.expresso.pt

"Classificação Expresso das melhores cidades portuguesas para viver em 2007" (PDF). Archived from the original (PDF) on 16 February 2008.

fap.pt (Global: low place; English: low place)

"Federação Académica do Porto". Fap.pt. Archived from the original on 21 May 2009. Retrieved 6 May 2009.

fdiintelligence.com (Global: low place; English: low place)

"Tourists and real estate investors home in on Porto". Archived from the original on 26 September 2019.

fiba.com (Global: 1,799^th place; English: 1,956^th place)

archive.fiba.com

Portugal|2015 EuroBasket Archived 28 December 2019 at the Wayback Machine, archive.fiba.com. Retrieved 19 June 2016.

igeo.pt (Global: low place; English: low place)

IGP, ed. (2010), Carta Administrativa Oficial de Portugal (in Portuguese), Lisbon, Portugal: Instituto Geográfico Português, archived from the original on 3 July 2014, retrieved 1 July 2011

ine.pt (Global: 820^th place; English: 2,905^th place)

ine.pt

"População residente (N.º) por Local de residência (NUTS – 2024), Sexo e Grupo etário (Por ciclos de vida); Anual". Ine.pt. 18 June 2025. Retrieved 19 June 2025.
Instituto Nacional de Estatística. (Recenseamentos Gerais da População) Archived 8 April 2008 at the Wayback Machine
"Produto interno bruto (B.1*g) a preços correntes (Base 2021 - €) por Localização geográfica (NUTS - 2024); Anual". Ine.pt. Retrieved 14 January 2025.
"Produto interno bruto (B.1*g) por habitante a preços correntes (Base 2021 - €) por Localização geográfica (NUTS - 2024); Anual". Ine.pt. Retrieved 14 January 2025.

tabulador.ine.pt

"Census – Final results: Portugal – 2021". Statistics Portugal. Archived from the original on 23 November 2022. Retrieved 4 February 2023.

ipma.pt (Global: low place; English: low place)

"Normais Climatológicas – 1981–2010(provisórias) – Porto" (in Portuguese). Instituto de Meteorologia. Archived from the original on 29 August 2019. Retrieved 19 January 2013.
"Normal Climatológica – Porto / Pedras Rubras 1991–2020" (PDF). IPMA. Retrieved 27 August 2025.
"Normal Climatológica – Porto / Pedras Rubras 1981–2010" (PDF). IPMA. Retrieved 4 March 2025.

jn.pt (Global: 3,481^st place; English: 5,184^th place)

""A haver uma avaliação de zero a dez, dou ao metrobus do Porto nota dez"". Jornal de Notícias. 28 February 2026. Retrieved 2 March 2026.

lboro.ac.uk (Global: 5,360^th place; English: 4,226^th place)

"The World According to GaWC 2020". GaWC – Research Network. Globalization and World Cities. Archived from the original on 24 August 2020. Retrieved 31 August 2020.

lexico.com (Global: 2,946^th place; English: 2,042^nd place)

"Oporto" (US) and "Oporto". Lexico UK English Dictionary. Oxford University Press. Archived from the original on 15 June 2020.
"Oporto". Lexico UK English Dictionary UK English Dictionary. Oxford University Press. Archived from the original on 15 June 2020.

lyceefrancaisdeporto.pt (Global: low place; English: low place)

"Lycée Français International de Porto". LFIP. Archived from the original on 12 August 2017. Retrieved 12 August 2017.

manorhouses.com (Global: low place; English: low place)

"Porto ( Oporto ) UNESCO World Heritage Site Portugal". Retrieved 31 December 2024.

marktest.com (Global: low place; English: low place)

"Histórico de resultados Eleitorais – Autárquicas". Marktest (in Portuguese). Archived from the original on 2 October 2024. Retrieved 12 August 2024.

mec.pt (Global: low place; English: low place)

scielo.mec.pt

Semënova-Head, Larisa; Head, Brian F. "Vestígios da presença sueva no noroeste da península ibérica: na etnologia, na arqueologia e na língua". Revista Diacrítica. 27 (2): 257–277. Archived from the original on 13 April 2021. Retrieved 29 December 2018.

merriam-webster.com (Global: 425^th place; English: 373^rd place)

"Porto". Merriam-Webster.com Dictionary. Merriam-Webster. OCLC 1032680871. Retrieved 1 June 2019.

metrodoporto.pt (Global: low place; English: low place)

"Metro em números". Metrodoporto.pt (in European Portuguese). Archived from the original on 24 September 2024. Retrieved 18 August 2024.

monumentos.pt (Global: 4,011^th place; English: 2,276^th place)

"Ponte de D. Luís". Retrieved 22 September 2014.

moovitapp.com (Global: low place; English: low place)

"Porto Public Transportation Statistics". Global Public Transit Index by Moovit. Archived from the original on 1 September 2017. Retrieved 19 June 2017. Material was copied from this source, which is available under a Creative Commons Attribution 4.0 International License Archived 16 October 2017 at the Wayback Machine.

noticiasaominuto.com (Global: 8,179^th place; English: low place)

"Porto 2001 foi cultura mas também muitas obras, milhões e derrapagens". 29 January 2020. Retrieved 14 April 2024.

nytimes.com (Global: 7^th place; English: 7^th place)

Ouroussoff, Nicolai (25 December 2005). "A Vision of a Mobile Society Rolls Off the Assembly Line". The New York Times. Archived from the original on 4 January 2015. Retrieved 23 January 2020 – via NYTimes.com.

ottomanjournal.com (Global: low place; English: low place)

"Urban Tourist Motivations in the City of Porto" (PDF). Archived (PDF) from the original on 26 September 2019. Retrieved 26 September 2019.

palaciodabolsa.com (Global: low place; English: low place)

"Palácio da Bolsa – History". Retrieved 30 July 2019.

populationstat.com (Global: low place; English: low place)

"Porto, Portugal Population (2025) – Population Stat". populationstat.com. Retrieved 14 April 2025.

porto.pt (Global: low place; English: low place)

""There is no place like Porto", as the Invicta is under the Hollywood's radar, this time starring in 'The Suicide Squad'". Porto.pt. 30 July 2021. Archived from the original on 2 August 2021. Retrieved 22 January 2022.

portobest.city (Global: low place; English: low place)

"Porto City of the Year by Food and Travel". Retrieved 7 April 2025.

portoevents.com (Global: low place; English: low place)

"Porto enjoys rapid growth in visitors in 2018 for tourism & conferences". Archived from the original on 26 September 2019. Retrieved 26 September 2019.

portugalhomes.com (Global: low place; English: low place)

"World Travel Awards Recognises Portugal". Archived from the original on 9 December 2022. Retrieved 7 April 2025.

primariatm.ro (Global: low place; English: low place)

"Raportul de activitate pentru anul 2018: 5.1.1 Cooperarea cu oraşele înfrăţite şi partenere" (PDF). primariatm.ro (in Romanian). Timișoara. 2019. pp. 33–34. Archived (PDF) from the original on 19 October 2021. Retrieved 29 June 2022.

publico.pt (Global: 1,011^th place; English: 1,801^st place)

"Funicular dos Guindais e Elevador da Lada concessionados por 2,17 milhões de euros". Publico.pt (in European Portuguese). 17 November 2019. Archived from the original on 23 January 2025. Retrieved 15 January 2025.
Lusa (17 July 2024). "EUA já não libertam maioria dos migrantes que atravessam fronteira ilegalmente". PÚBLICO (in Portuguese). Retrieved 9 December 2025.

railway-technology.com (Global: 5,935^th place; English: 3,958^th place)

"Porto Light Rail Project, Portugal". Railway Technology. Archived from the original on 5 July 2009. Retrieved 6 May 2009.

sculpturemagazine.art (Global: low place; English: low place)

Janet Echelman's She Changes Archived 5 February 2012 at the Wayback Machine Sculpture Magazine July–August 2005

sef.pt (Global: low place; English: low place)

sefstat.sef.pt

"Estrangeiros residentes em: Porto / Porto. SEFSTAT – Portal de Estatística". Archived from the original on 2 October 2024. Retrieved 4 February 2023.

skyscraperpage.com (Global: 1,452^nd place; English: 1,104^th place)

"Database > Portugal > Porto". SkyscraperPage.com. Skyscraper Source Media. Retrieved 24 July 2025.

statista.com (Global: 1,214^th place; English: 1,277^th place)

"Porto hotel occupancy rate 2011–2019". Statista. Archived from the original on 2 October 2024. Retrieved 26 September 2019.

taylor.pt (Global: low place; English: low place)

"The History of Port: The Marquis of Pombal". Taylor's Port. 2023. Archived from the original on 5 August 2023. Retrieved 30 October 2024.

tehrantimes.com (Global: 3,004^th place; English: 2,199^th place)

"Isfahan, Samarkand become sister cities". Tehran Times. 3 July 2021. Archived from the original on 20 September 2021. Retrieved 12 August 2024.

theguardian.com (Global: 16^th place; English: 11^th place)

"Top shelves". The Guardian. 11 January 2008. Archived from the original on 24 June 2008. Retrieved 22 January 2008.

themayor.eu (Global: low place; English: low place)

The Mayor EU (2024). Online: https://www.themayor.eu/en/portugal/porto/mayors Archived 2 October 2024 at the Wayback Machine, Retrieved 9 February 2024.

travel-in-portugal.com (Global: low place; English: low place)

"Dom Luis I Bridge". Portugal Travel Guide. 15 June 2014. Archived from the original on 28 September 2019. Retrieved 28 September 2019.

travelinho.com (Global: low place; English: low place)

"Porto – Santiago de Compostela: Trains, Buses & Carpooling". Travelinho.com. Archived from the original on 9 October 2018. Retrieved 9 October 2018.

travellerselixir.com (Global: low place; English: low place)

"15 Best Things To Do In Porto In 2023 (Written By A Local)". Traveller's Elixir. 4 February 2023. Archived from the original on 2 October 2024. Retrieved 14 October 2023.

un.org (Global: 117^th place; English: 160^th place)

esa.un.org

United Nations Department of Economic and Social Affairs, World Urbanization Prospects (2009 revision), (United Nations, 2010), Table A.12. Data for 2007. Archived 31 October 2013 at the Wayback Machine

unesco.org (Global: 104^th place; English: 170^th place)

whc.unesco.org

Centre, UNESCO World Heritage. "Historic Centre of Porto, Luiz I Bridge and Monastery of Serra do Pilar". UNESCO World Heritage Centre. Archived from the original on 18 August 2021. Retrieved 26 September 2019.
"Historic Centre of Porto". World Heritage List. UNESCO World Heritage Centre. Archived from the original on 18 August 2021. Retrieved 30 October 2021.

up.pt (Global: 5,271^st place; English: 7,125^th place)

ler.letras.up.pt

"A Porto University document/study in Portuguese" (PDF). Archived (PDF) from the original on 21 November 2022. Retrieved 1 May 2007. (478 KB)

jpn.up.pt

"Porto recebeu mais de três milhões de turistas em 2025". JPN - JornalismoPortoNet. 26 February 2026. Retrieved 6 April 2026.

up.pt

FBAUP | Institutional | History

repositorio-aberto.up.pt

Ana Soraia Pereira Vasconcelos Freitas (July 2017). "Relatório de Estágio: Divisão Municipal de Relações Internacionais e Protocolo – Câmara Municipal do Porto" (PDF). repositorio-aberto.up.pt (in Portuguese). Faculdade de Letras da Universidade do Porto. pp. 27–28. Archived (PDF) from the original on 11 March 2022. Retrieved 29 June 2022.

upload.wikimedia.org (Global: 1,245^th place; English: 1,259^th place)

Portuguese pronunciation: [ˈpoɾtu] ^ⓘ

uta.edu (Global: low place; English: 6,309^th place)

mavmatrix.uta.edu

Winslett, Matthew (2008). The Nadir of Alliance: The British Ultimatum of 1890 and Its Place in Anglo-Portuguese Relations, 1147—1945. p. 3. ISBN 9780549707752. Archived from the original on 9 October 2024. Retrieved 9 October 2024.

vinci.com (Global: low place; English: low place)

"VINCI Airports – Traffic as of December 31, 2025" (PDF). VINCI Airports. Retrieved 2 February 2026.

visitportugal.com (Global: low place; English: low place)

"Kadoorie - Mekor Haim Synagogue | www.visitportugal.com". Visitportugal.com. Retrieved 15 May 2026.

web.archive.org (Global: 1^st place; English: 1^st place)

"Portugal International Dialing Code". Archived from the original on 30 April 2010. Retrieved 12 September 2010.
IGP, ed. (2010), Carta Administrativa Oficial de Portugal (in Portuguese), Lisbon, Portugal: Instituto Geográfico Português, archived from the original on 3 July 2014, retrieved 1 July 2011
"Oporto" (US) and "Oporto". Lexico UK English Dictionary. Oxford University Press. Archived from the original on 15 June 2020.
"Oporto". Collins English Dictionary. HarperCollins. Archived from the original on 1 June 2019. Retrieved 1 June 2019.
"Oporto". Lexico UK English Dictionary UK English Dictionary. Oxford University Press. Archived from the original on 15 June 2020.
"Porto Population". World Population Review. 2 December 2019. Archived from the original on 18 March 2021. Retrieved 2 December 2019.
Demographia: World Urban Areas Archived 3 May 2018 at the Wayback Machine, March 2010
United Nations Department of Economic and Social Affairs, World Urbanization Prospects (2009 revision), (United Nations, 2010), Table A.12. Data for 2007. Archived 31 October 2013 at the Wayback Machine
European Spatial Planning Observation Network, Study on Urban Functions (Project 1.4.3), Final Report, Chapter 3, (ESPON, 2007) Archived 28 July 2009 at the Wayback Machine
Thomas Brinkoff, Principal Agglomerations of the World Archived 4 July 2010 at the Wayback Machine, Retrieved 12 March 2009. Data for 1 January 2009.
"The World According to GaWC 2020". GaWC – Research Network. Globalization and World Cities. Archived from the original on 24 August 2020. Retrieved 31 August 2020.
Centre, UNESCO World Heritage. "Historic Centre of Porto, Luiz I Bridge and Monastery of Serra do Pilar". UNESCO World Heritage Centre. Archived from the original on 18 August 2021. Retrieved 26 September 2019.
"Online Etymology Dictionary". Archived from the original on 8 May 2016. Retrieved 18 December 2006.
"World Travel Awards Recognises Portugal". Archived from the original on 9 December 2022. Retrieved 7 April 2025.
"Historic Centre of Porto". World Heritage List. UNESCO World Heritage Centre. Archived from the original on 18 August 2021. Retrieved 30 October 2021.
Semënova-Head, Larisa; Head, Brian F. "Vestígios da presença sueva no noroeste da península ibérica: na etnologia, na arqueologia e na língua". Revista Diacrítica. 27 (2): 257–277. Archived from the original on 13 April 2021. Retrieved 29 December 2018.
Menéndez Pidal, Ramón (1906). PRIMERA CRÓNICA GENERAL. ESTORIA DE ESPAÑA DE ALFONSO X (2022 ed.). Biblioteca Digital de Castilla y León. p. 357. Archived from the original on 2 October 2024. Retrieved 10 June 2023.
"Treaty of Windsor – British-Portugal". britannica.com. Archived from the original on 26 February 2014. Retrieved 10 February 2016.
Winslett, Matthew (2008). The Nadir of Alliance: The British Ultimatum of 1890 and Its Place in Anglo-Portuguese Relations, 1147—1945. p. 3. ISBN 9780549707752. Archived from the original on 9 October 2024. Retrieved 9 October 2024.
"The History of Port: The Marquis of Pombal". Taylor's Port. 2023. Archived from the original on 5 August 2023. Retrieved 30 October 2024.
"A Porto University document/study in Portuguese" (PDF). Archived (PDF) from the original on 21 November 2022. Retrieved 1 May 2007. (478 KB)
"Law nr. 11-A/2013, pages 552 99–100" (PDF). Diário da República (in Portuguese). Archived (PDF) from the original on 6 December 2013. Retrieved 29 July 2014.
Monge-Barrio, Aurora; Gutiérrez, Ana Sánchez-Ostiz (9 February 2018). Passive Energy Strategies for Mediterranean Residential Buildings: Facing the Challenges of Climate Change and Vulnerable Populations. Springer. ISBN 9783319698830. Archived from the original on 2 October 2024. Retrieved 19 October 2020.
"Normais Climatológicas – 1981–2010(provisórias) – Porto" (in Portuguese). Instituto de Meteorologia. Archived from the original on 29 August 2019. Retrieved 19 January 2013.
"Porto (08546) – WMO Weather Station". NOAA. Archived from the original on 2 October 2024. Retrieved 18 April 2019.
The Mayor EU (2024). Online: https://www.themayor.eu/en/portugal/porto/mayors Archived 2 October 2024 at the Wayback Machine, Retrieved 9 February 2024.
"Histórico de resultados Eleitorais – Autárquicas". Marktest (in Portuguese). Archived from the original on 2 October 2024. Retrieved 12 August 2024.
"Estrangeiros residentes em: Porto / Porto. SEFSTAT – Portal de Estatística". Archived from the original on 2 October 2024. Retrieved 4 February 2023.
"Census – Final results: Portugal – 2021". Statistics Portugal. Archived from the original on 23 November 2022. Retrieved 4 February 2023.
Instituto Nacional de Estatística. (Recenseamentos Gerais da População) Archived 8 April 2008 at the Wayback Machine
Ribeiro, Pedro (19 July 2011). "Índice de competitividade coloca Évora no topo e Porto em último". Público. Archived from the original on 11 March 2007. Retrieved 22 August 2025.
Coentrão, Abel Quanto vale o Grande Porto? Archived 2007-03-11 at the Wayback Machine — Publico.pt
"Classificação Expresso das melhores cidades portuguesas para viver em 2007" (PDF). Archived from the original (PDF) on 16 February 2008.
"US dollar (USD)". ecb.pt. Archived from the original on 1 December 2023. Retrieved 2 December 2023.
"Tourists and real estate investors home in on Porto". Archived from the original on 26 September 2019.
"Porto enjoys rapid growth in visitors in 2018 for tourism & conferences". Archived from the original on 26 September 2019. Retrieved 26 September 2019.
"Porto hotel occupancy rate 2011–2019". Statista. Archived from the original on 2 October 2024. Retrieved 26 September 2019.
"Urban Tourist Motivations in the City of Porto" (PDF). Archived (PDF) from the original on 26 September 2019. Retrieved 26 September 2019.
"15 Best Things To Do In Porto In 2023 (Written By A Local)". Traveller's Elixir. 4 February 2023. Archived from the original on 2 October 2024. Retrieved 14 October 2023.
"Dom Luis I Bridge". Portugal Travel Guide. 15 June 2014. Archived from the original on 28 September 2019. Retrieved 28 September 2019.
Tours, Do. "Les Nouveautés Do Tours | Do Tours". Archived from the original on 16 June 2020. Retrieved 23 January 2020.
"Porto – Santiago de Compostela: Trains, Buses & Carpooling". Travelinho.com. Archived from the original on 9 October 2018. Retrieved 9 October 2018.
"Metro em números". Metrodoporto.pt (in European Portuguese). Archived from the original on 24 September 2024. Retrieved 18 August 2024.
"Funicular dos Guindais e Elevador da Lada concessionados por 2,17 milhões de euros". Publico.pt (in European Portuguese). 17 November 2019. Archived from the original on 23 January 2025. Retrieved 15 January 2025.
"Luso Pages – Oporto / Porto (Portugal) Trams and Trolleybuses". Altrinchamfc.co.uk. Archived from the original on 2 October 2024. Retrieved 4 December 2016.
"Porto Light Rail Project, Portugal". Railway Technology. Archived from the original on 5 July 2009. Retrieved 6 May 2009.
"Porto Public Transportation Statistics". Global Public Transit Index by Moovit. Archived from the original on 1 September 2017. Retrieved 19 June 2017. Material was copied from this source, which is available under a Creative Commons Attribution 4.0 International License Archived 16 October 2017 at the Wayback Machine.
AtlasWeb (2011). "Rotterdam and Porto: Cultural Capitals 2001: visitor research. – ATLAS Shop". atlas-webshop.org. Archived from the original on 23 December 2017. Retrieved 5 July 2011.
""There is no place like Porto", as the Invicta is under the Hollywood's radar, this time starring in 'The Suicide Squad'". Porto.pt. 30 July 2021. Archived from the original on 2 August 2021. Retrieved 22 January 2022.
Ouroussoff, Nicolai (25 December 2005). "A Vision of a Mobile Society Rolls Off the Assembly Line". The New York Times. Archived from the original on 4 January 2015. Retrieved 23 January 2020 – via NYTimes.com.
"Top shelves". The Guardian. 11 January 2008. Archived from the original on 24 June 2008. Retrieved 22 January 2008.
"São João Festival (St John Festival)". World Events Guide. Archived from the original on 17 September 2008. Retrieved 6 May 2009.
"Federação Académica do Porto". Fap.pt. Archived from the original on 21 May 2009. Retrieved 6 May 2009.
Janet Echelman's She Changes Archived 5 February 2012 at the Wayback Machine Sculpture Magazine July–August 2005
"Lycée Français International de Porto". LFIP. Archived from the original on 12 August 2017. Retrieved 12 August 2017.
"1901–1921". Dsporto.de. Archived from the original on 2 October 2024. Retrieved 12 August 2017.
"Ranking Web of World Universities". Archived from the original on 18 June 2012.
Portugal|2015 EuroBasket Archived 28 December 2019 at the Wayback Machine, archive.fiba.com. Retrieved 19 June 2016.
Ana Soraia Pereira Vasconcelos Freitas (July 2017). "Relatório de Estágio: Divisão Municipal de Relações Internacionais e Protocolo – Câmara Municipal do Porto" (PDF). repositorio-aberto.up.pt (in Portuguese). Faculdade de Letras da Universidade do Porto. pp. 27–28. Archived (PDF) from the original on 11 March 2022. Retrieved 29 June 2022.
"Raportul de activitate pentru anul 2018: 5.1.1 Cooperarea cu oraşele înfrăţite şi partenere" (PDF). primariatm.ro (in Romanian). Timișoara. 2019. pp. 33–34. Archived (PDF) from the original on 19 October 2021. Retrieved 29 June 2022.
"Isfahan, Samarkand become sister cities". Tehran Times. 3 July 2021. Archived from the original on 20 September 2021. Retrieved 12 August 2024.

webometrics.info (Global: low place; English: low place)

"Ranking Web of World Universities". Archived from the original on 18 June 2012.

worldcat.org (Global: 4^th place; English: 4^th place)

search.worldcat.org

"Porto". Merriam-Webster.com Dictionary. Merriam-Webster. OCLC 1032680871. Retrieved 1 June 2019.

worldeventsguide.com (Global: low place; English: low place)

"São João Festival (St John Festival)". World Events Guide. Archived from the original on 17 September 2008. Retrieved 6 May 2009.

worldpopulationreview.com (Global: 2,810^th place; English: 4,138^th place)

"Porto Population". World Population Review. 2 December 2019. Archived from the original on 18 March 2021. Retrieved 2 December 2019.

Porto (English Wikipedia)

ahdictionary.com (Global: 4,364th place; English: 2,759th place)

altrinchamfc.co.uk (Global: low place; English: low place)

amazingeurope.net (Global: low place; English: low place)

amp.pt (Global: low place; English: low place)

archaeology.org (Global: 4,349th place; English: 3,410th place)

atlas-webshop.org (Global: low place; English: low place)

boe.es (Global: 341st place; English: 748th place)

bomdia.eu (Global: low place; English: low place)

books.google.com (Global: 3rd place; English: 3rd place)

britannica.com (Global: 37th place; English: 64th place)

citypopulation.de (Global: 99th place; English: 341st place)

clix.pt (Global: low place; English: low place)

publico.clix.pt

jornal.publico.clix.pt

cm-gondomar.pt (Global: low place; English: low place)

collinsdictionary.com (Global: 1,831st place; English: 1,216th place)

creativecommons.org (Global: 580th place; English: 287th place)

demographia.com (Global: 3,406th place; English: 9,051st place)

do-tours.com (Global: low place; English: low place)

doi.org (Global: 2nd place; English: 2nd place)

dre.pt (Global: 1,800th place; English: 4,309th place)

dsporto.de (Global: low place; English: low place)

embassyhomepage.com (Global: low place; English: low place)

portugal.embassyhomepage.com

en.wikisource.org (Global: 82nd place; English: 41st place)

escolaballetpirmin.com (Global: low place; English: low place)

espon.eu (Global: low place; English: low place)

etymonline.com (Global: 669th place; English: 670th place)

europa.eu (Global: 62nd place; English: 100th place)

ecb.europa.eu

expresso.pt (Global: 4,014th place; English: 4,699th place)

clix.semanal.expresso.pt

fap.pt (Global: low place; English: low place)

fdiintelligence.com (Global: low place; English: low place)

fiba.com (Global: 1,799th place; English: 1,956th place)

archive.fiba.com

igeo.pt (Global: low place; English: low place)

ine.pt (Global: 820th place; English: 2,905th place)

ine.pt

tabulador.ine.pt

ipma.pt (Global: low place; English: low place)

jn.pt (Global: 3,481st place; English: 5,184th place)

lboro.ac.uk (Global: 5,360th place; English: 4,226th place)

lexico.com (Global: 2,946th place; English: 2,042nd place)

lyceefrancaisdeporto.pt (Global: low place; English: low place)

manorhouses.com (Global: low place; English: low place)

marktest.com (Global: low place; English: low place)

mec.pt (Global: low place; English: low place)

scielo.mec.pt

merriam-webster.com (Global: 425th place; English: 373rd place)

metrodoporto.pt (Global: low place; English: low place)

monumentos.pt (Global: 4,011th place; English: 2,276th place)

moovitapp.com (Global: low place; English: low place)

noticiasaominuto.com (Global: 8,179th place; English: low place)

nytimes.com (Global: 7th place; English: 7th place)

ottomanjournal.com (Global: low place; English: low place)

palaciodabolsa.com (Global: low place; English: low place)

populationstat.com (Global: low place; English: low place)

porto.pt (Global: low place; English: low place)

portobest.city (Global: low place; English: low place)

portoevents.com (Global: low place; English: low place)

portugalhomes.com (Global: low place; English: low place)

primariatm.ro (Global: low place; English: low place)

publico.pt (Global: 1,011th place; English: 1,801st place)

railway-technology.com (Global: 5,935th place; English: 3,958th place)

sculpturemagazine.art (Global: low place; English: low place)

sef.pt (Global: low place; English: low place)

sefstat.sef.pt

skyscraperpage.com (Global: 1,452nd place; English: 1,104th place)

statista.com (Global: 1,214th place; English: 1,277th place)

taylor.pt (Global: low place; English: low place)

tehrantimes.com (Global: 3,004th place; English: 2,199th place)

theguardian.com (Global: 16th place; English: 11th place)

themayor.eu (Global: low place; English: low place)

travel-in-portugal.com (Global: low place; English: low place)

travelinho.com (Global: low place; English: low place)

travellerselixir.com (Global: low place; English: low place)

un.org (Global: 117th place; English: 160th place)

esa.un.org

ahdictionary.com (Global: 4,364^th place; English: 2,759^th place)

archaeology.org (Global: 4,349^th place; English: 3,410^th place)

boe.es (Global: 341^st place; English: 748^th place)

books.google.com (Global: 3^rd place; English: 3^rd place)

britannica.com (Global: 37^th place; English: 64^th place)

citypopulation.de (Global: 99^th place; English: 341^st place)

collinsdictionary.com (Global: 1,831^st place; English: 1,216^th place)

creativecommons.org (Global: 580^th place; English: 287^th place)

demographia.com (Global: 3,406^th place; English: 9,051^st place)

doi.org (Global: 2^nd place; English: 2^nd place)

dre.pt (Global: 1,800^th place; English: 4,309^th place)

en.wikisource.org (Global: 82^nd place; English: 41^st place)

etymonline.com (Global: 669^th place; English: 670^th place)

europa.eu (Global: 62^nd place; English: 100^th place)

expresso.pt (Global: 4,014^th place; English: 4,699^th place)

fiba.com (Global: 1,799^th place; English: 1,956^th place)

ine.pt (Global: 820^th place; English: 2,905^th place)

jn.pt (Global: 3,481^st place; English: 5,184^th place)

lboro.ac.uk (Global: 5,360^th place; English: 4,226^th place)

lexico.com (Global: 2,946^th place; English: 2,042^nd place)

merriam-webster.com (Global: 425^th place; English: 373^rd place)

monumentos.pt (Global: 4,011^th place; English: 2,276^th place)

noticiasaominuto.com (Global: 8,179^th place; English: low place)

nytimes.com (Global: 7^th place; English: 7^th place)

publico.pt (Global: 1,011^th place; English: 1,801^st place)

railway-technology.com (Global: 5,935^th place; English: 3,958^th place)

skyscraperpage.com (Global: 1,452^nd place; English: 1,104^th place)

statista.com (Global: 1,214^th place; English: 1,277^th place)

tehrantimes.com (Global: 3,004^th place; English: 2,199^th place)

theguardian.com (Global: 16^th place; English: 11^th place)

un.org (Global: 117^th place; English: 160^th place)

unesco.org (Global: 104^th place; English: 170^th place)

up.pt (Global: 5,271^st place; English: 7,125^th place)

upload.wikimedia.org (Global: 1,245^th place; English: 1,259^th place)

uta.edu (Global: low place; English: 6,309^th place)

web.archive.org (Global: 1^st place; English: 1^st place)

worldcat.org (Global: 4^th place; English: 4^th place)

worldpopulationreview.com (Global: 2,810^th place; English: 4,138^th place)