Ancient Aliens S15E1 · The Mystery of Nan Madol

Ancient Aliens

Season 15 · Episode 1 · The Mystery of Nan Madol · 42 min

Giorgio Tsoukalos and David Childress explore the mysterious chain of manmade islets in Micronesia's Nan Madol; built from 250 million tons of volcanic rock, there are local legends that strange visitors floated the massive rocks through the air.