<P> The Templo Mayor (Spanish for "Main Temple") was one of the main temples of the Aztecs in their capital city of Tenochtitlan, which is now Mexico City . Its architectural style belongs to the late Postclassic period of Mesoamerica . The temple was called the Huēyi Teōcalli (we: ˈi teoːˈkali) in the Nahuatl language and dedicated simultaneously to two gods, Huitzilopochtli, god of war, and Tlaloc, god of rain and agriculture, each of which had a shrine at the top of the pyramid with separate staircases . The spire in the center of the adjacent image was devoted to Quetzalcoatl in his form as the wind god, Ehecatl . The Great Temple devoted to Huitzilopochtli and Tlaloc, measuring approximately 100 by 80 m (328 by 262 ft) at its base, dominated the Sacred Precinct . Construction of the first temple began sometime after 1325, and it was rebuilt six times . The temple was destroyed by the Spanish in 1521 to make way for the new cathedral . Today, the archeological site lies just to the northeast of the Zocalo, or main plaza of Mexico City, in the block between Seminario and Justo Sierra streets . </P> <P> The site is part of the Historic Center of Mexico City, which was added to the UNESCO World Heritage List in 1987 . </P>

When was the great temple of tenochtitlan built