The Mystery of Nan Madol Ancient Aliens : Season 15 Episode 1
TV-PG History 42m
Aired: January 25th, 2020 @ 9:00 PM EST on History
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.
