Ancient Aliens (2010)

S21E01 The Top Ten Extraordinary Discoveries

In this episode of Ancient Aliens, the series highlights ten remarkable findings that defy conventional understandings of human history. Viewers will explore a hidden city nestled in the Andes, enigmatic metal spheres of unknown origin, and an underwater city believed to be the dwelling place of deities. These astounding discoveries prompt the question: do they offer evidence of interactions with extraterrestrial beings?