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Watch Ancient Aliens Season 15 Online

  • 6.9/10
  • COUNTRIES: United States of America
  • Subtitles: English

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.