Ancient Aliens: Secrets of Teotihuacan (Season 12, Episode 7) | History

As only about 10% of Teotihuacan has been excavated so far, ancient astronaut theorists wonder what surprising discoveries await us in this clip from Season 12, Episode 7, “City of the Gods”.
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“Ancient Aliens” explores the controversial theory that extraterrestrials have visited Earth for millions of years.

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