Ancient Aliens S18E13 · Ancient Aliens on Location: The Alien Glyphs

Ancient Aliens

Season 18 · Episode 13 · Ancient Aliens on Location: The Alien Glyphs · 42 min

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.