Ancient Aliens: The Impossible Stone Blocks of Puma Punku (Season 9) | History

Tune in to Alien Invasion Week on History starting Monday 9/30 through Friday 10/4 for new Ancient Aliens, plus the premiere of In Search Of, new UFO Specials and More! Bolivia’s stone blocks are so precise that Ancient Astronaut Theorists believe they could not have been built without advanced alien technology in this clip from Season 9, “The Mystery of Puma Punku“. #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: Watch More Ancient Aliens on this YouTube playlist: Find out more about the show and watch full episodes on our site: Check out exclusive HISTORY content: History Newsletter: Website - Facebook - Twitter - HISTORY® is the leading destination for award-winning original series and specials that connect viewers with histor