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Ancient Aliens Season 18 Episode 13
Ancient Aliens has examined the oldest and most mysterious rock art on Earth up close, and Giorgio Tsoukalos takes a look back at the incredible hieroglyphs, petroglyphs, and geoglyphs that he believes tell a worldwide story of alien visitation.
Serie: Ancient Aliens
Episode Title: Ancient Aliens on Location: The Alien Glyphs
Air Date: 2022-07-22