Ancient Aliens (2010)

S22E4 Extraterrestrial Engineering

Giorgio Tsoukalos delves into the series' archives to investigate extraordinary ancient constructions that challenge traditional understanding. He examines the meticulously shaped stone blocks at Puma Punku, the colossal temples of Malta, and the megalithic city of Nan Madol. Could these enigmatic locations hold clues suggesting interactions with extraterrestrial beings in ancient times?