«Central Zone of the Town of Angra do Heroismo in the Azores». UNESCO World Heritage Centre (på engelsk). Besøkt 14. januar 2019. «Criterion (iv): Set in the mid-Atlantic, the port of Angra, obligatory port-of-call for fleets from Africa and the Indies, is an outstanding example of a creation linked to the maritime world, within the framework of the great explorations; Criterion (vi): Like the Tower of Belem, the Convent of the Hieronymites of Lisbon, and Goa, Angra do Heroísmo is directly and tangibly associated with an event of a universal historic significance: the maritime exploration which permitted exchanges between the great civilizations of the Earth.»
