Inca technology (English Wikipedia)

Kenneth R. Wright; Jonathan M. Kelly; Alfredo Valencia Zegarra. (1997). "Machu Picchu: Ancient Hydraulic Engineering". Journal of Hydraulic Engineering. 123 (10): 838–843. doi:10.1061/(ASCE)0733-9429(1997)123:10(838).
Peregrine, Peter; Ember, Melvin (2002). Encyclopedia of Prehistory: Volume 7: South America. pp. 150–193. doi:10.1007/978-1-4615-0521-1_14.
Londoño, Ana (February 12, 2007). "Pattern and rate of erosion inferred from Inca agricultural terraces in arid southern Peru". Geomorphology. 99 (1–4): 13–25. doi:10.1016/j.geomorph.2007.09.014.

ghostarchive.org (Global: 32^nd place; English: 21^st place)

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Franco, Michael (2011-01-12). "Terrace Farming". HowStuffWorks.

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Meier, Allison (March 31, 2016). "The Inca Rope Bridge That's Woven Across a River Each Year". Hyperallergic. Retrieved December 3, 2017.

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"Inca Food and the Inca People". inside peru.com. Archived from the original on May 28, 2022. Retrieved October 1, 2024.

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

Wilford, John (May 8, 2007). "How the Inca Leapt Canyons". The New York Times. Retrieved December 3, 2017.

pbs.org (Global: 198^th place; English: 154^th place)

"Grass Bridge". PBS. May 9, 2006. Retrieved December 3, 2017.
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si.edu (Global: 340^th place; English: 295^th place)

nmai.si.edu

"Engineering the Inka empire". Smithsonian National Museum of the American Indian.
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americanindian.si.edu

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Obscura, Atlas (June 10, 2013). "The Last Incan Suspension Bridge Is Made Entirely of Grass and Woven by Hand". Slate. Retrieved December 1, 2017.

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Plata, Allie (August 4, 2017). "Q'eswachaka, the Last Inka Suspension Bridge". Smithsonian.com. Retrieved December 3, 2017.

waterhistory.org (Global: low place; English: low place)

Wright, Kenneth; Valencia, Alfedo; Lorah, William. "Ancient Machu Picchu Drainage Engineering" (PDF). Waterhistory.org.

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"Inca Food and the Inca People". inside peru.com. Archived from the original on May 28, 2022. Retrieved October 1, 2024.

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Cartwright, Mark (September 15, 2014). "Inca Civilization". World History Encyclopedia. Retrieved November 30, 2017.

youtube.com (Global: 9^th place; English: 13^th place)

"Inca Bridge". YouTube. August 4, 2011. Archived from the original on 2021-12-18.

Inca technology (English Wikipedia)

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