Ancient Aliens: Gobekli Tepe (Season 12, Episode 16) | History

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Ancient astronaut theorists believe that the approximately 12,000-year-old Gobekli Tepe monument in modern-day Turkey may have been built by the survivors of a lost society in this clip from Season 12, Episode 16, "Return to Gobekli Tepe". #AncientAliens
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"Ancient Aliens" explores the controversial theory that extraterrestrials have visited Earth for millions of years.

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