Ancient Aliens
Mysterious Structures (6x13)
Air date: Jun 20, 2014
Theorists explain how alien technology may be responsible for massive structures like the 3,000 megalithic stones in the French village of Carna, precision-cut blocks at Puma Punku in Peru and the Gobekli Tepe's 12,000-year-old circular structures.
- Premiered: Apr 2010
- Episodes: 286
- Followers: 632
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