History's Greatest Mysteries

Season 5, Episode 8

Episode Title: The Mystery of Machu Picchu

Air Date: 2024-03-25

Overview:

With 500-year-old secrets hidden in skeletons and stone, Machu Picchu is one of the most puzzling archaeological sites on earth. It's among the ancient world's most enduring riddles: Who built this astonishing complex, and why?