Ancient Aliens S20E5 · The Top Ten Alien Codes

Ancient Aliens

Season 20 · Episode 5 · The Top Ten Alien Codes · 42 min

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?