The mighty Pre Columbian empires of the Maya, Aztecs and Inca, were advanced civilizations with an organized social structure that flourished in art, mathematics, astronomy, and perhaps most notably, architecture and engineering. Their god-kings acted as mediators between mortals and the supernatural realm. They lead through skillful political alliances, strategic marriages, human sacrifice and murder. Ancient enmity with their vassal states led to devastating betrayal. Then, the Spanish - those strange bearded men in steel clothes astride huge four-legged beasts - cleverly played tribe against tribe in destroying these great empires.