National Geographic Pyramids of Death (2005)

They are some of the biggest pyramids on the planet millions of tons of stone and earth towering above the landscape in a display of massive wealth and power But it wasnt the pharaohs that built these pyramids This is the majestic ancient city of Teotihuacán Mexico home to one of the most powerful civilizations of its time But why around 750 AD did the advanced civilization that created Teotihuacán suddenly vanish The identities of its founders the language they spoke and even the original name of the city are all unknown DNA analysis of bodies from Teotihuacán shows they werent Mayan Incan or Aztec but an entirely different civilization It was assumed to have been a peaceful utopian society but the latest discoveries are revealing a much darker scenario In the depths of Teotihuacáns pyramids experts have uncovered vault after vault filled with curious human remains