NATIONAL GEOGRAPHIC SPECIAL Air Date: Thursday, February 23, 2023 Time Slot: 12:01 AM-1:00 AM EST on HULU Episode Title: "National Geographic Investigates: Peru's Grave Mystery" (Repeat)
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February 23
National Geographic Investigates: Peru's Grave Mystery: Special Premiere (Nat Geo)
Return to Kuelap's mass grave, where scientists have uncovered new clues to unlock the mystery of why the Chachapoya people seem to have vanished.
