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Watch Ancient Aliens Season 20 Episode 5 Online

  • 6.8/10
  • COUNTRIES: United States of America
  • Subtitles: English

Ancient Aliens is counting down ten of the most intriguing--and mysterious--symbols and codes found across the globe that just might contain proof of otherworldly contact. From glyphs in the Peruvian desert, to spiral petroglyphs embedded with advanced math, and a language with an otherworldly origin, could these codes unlock the secrets of our extraterrestrial past?