![Ancient Aliens: Solving the Mystery of Puma Punku’s Stone Blocks (Season 9) | History Ancient Aliens: Solving the Mystery of Puma Punku’s Stone Blocks (Season 9) | History](https://i.ytimg.com/vi/4hiwPHycmE0/maxresdefault.jpg)
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! Giorgio talks with an engineer who built a prototype to back up his theory that Puma Punku's stone blocks were actually part of ...
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