Climbing the Pyramid of the Sun before visitors were stopped was incredible. Up there, despite the open sun and wind, you felt an unbidden connection to the countless Mesoamericans who inhabited Teotihuacan, and the chilling echoes of human and animal sacrifice. Its a paradox feeling so powerfully crowded in such a vast space, in the most fascinating way. While a visit is truly worthwhile, until then, dive into history with some stunning Teotihuacan wallpapers!