Teotihuacan

Teotihuacan was the largest pre-Columbian city in the Americas and was at its height in the first half of the 1st millennium. Many think it was larger than Rome, a city of the same era. There is archaeological evidence that Teotihuacan was a multi-ethnic city, with Otomi, Zapotec, Mixtec, Maya and Nahua quarters. It was a major religious and political center. Parts of the ruins include the Feathered Serpent Pyramid, the Sun Pyramid, the Moon Pyramid, and the Avenue of the Dead that runs down the middle. This link: http://en.wikipedia.org/wiki/Teotihuacan will take you to Wikipedia's explanation, which is much better than mine.

We spent our last full day in Mexico here at Teotihuacan and it was well worth it. Elias was a self-declared explorer, donning his "Banana Jones" hat and his bow and arrow and climbing up the hundreds of little steps to the top of the Sun Pyramid.