Carved into the Peruvian desert thousands of years ago, the Nazca Lines have puzzled archaeologists and laypeople alike ever since their discovery 100 years ago. Olly travels to ancient cemeteries and Nazcan cities that are curiously off-limits to camera crews. He explores underground tunnels used in psychedelic cult initiations and tries to venture into the spirit world himself to unravel the mystery of the Nazca Lines.
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