Source: WTL photograph taken in Chapultepec Park, Mexico City.
Comments: This photo features the now-dry bathing pool of Moctezuma Ilhuicamina (1397-1469; ruled as Moctezuma I, 1440-1469). He is the Aztec tlatoani who had the aqueducts and bridges built connecting the mainland to Tenochtitlán island.