The Top Ten Alien Petroglyphs

September 15, 2023
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Ancient Aliens - S19 - E20

The Top Ten Alien Petroglyphs

Counting down the top ten alien petroglyphs around the world, from strange, human-like figures to flying craft and carvings of what appear to be astronauts. Could these mysterious carvings provide a record of extraterrestrial visitation?

Ancient Aliens: Season 19 - 20 Episode s