Teotihuacan- An ancient city in the Central Mexican basin that features some of the largest pyramids in the Americas. The Temple of the Sun, built approx. 1-150 AD features a unique architectural building style called tablud-tablero. In this style of architecture the vertical sides of the pyramid appear to be stacked in levels like a giant multi-layer cake. (The Aztecs, Maya, and their Predecessors: Archaeology of Mesoamerica by Muriel Porter Weaver; Academic Press Inc, CA, 1993, ISBN 0127390650).