Pyramids of Fire National Geographic Explorer : Season 2005 Episode 11
CNBC 2h 00m
Aired: February 12th, 2012 @ 8:00 PM EST on CNBC
The pyramids of Americas were built more than 2,000 years ago by a people who vanished long ago. Little is known about these builders and the purpose of the pyramids has been a mystery until now. Were they temples to the gods or sacrificial altars?
