Archaeology reveals the rich history and complex culture of the Aztecs. Journey to the center of this elevated ancient civilization, to a huge oval basin 7,500 feet above sea level, in the Valley of Mexico. Study National Geographic maps and behold the vast range of this intriguing empire. Learn how modern archaeological methods and computer technology have helped to piece together patterns of conquest and colonization. Watch over the shoulders of archaeologists as they unearth clues about the history of the Aztec. .