A new investigation into the Shroud of Turin, a cloth said to have covered Jesus' body, reveals clues toward its authenticity. Modern tools are used to analyze photos of ghosts from the 1800's. The creator of the enigmatic Georgia Guidestones is revealed.

Cryptic clues left by the Zodiac Killer are finally deciphered, leading to a prime suspect. The location of Forrest Fenn's million-dollar buried treasure is revealed. The Voynich Manuscript, a text that possibly explains the origins of life, is decoded.

In the 16th century, settlers of Roanoke vanished without a trace. New evidence finally reveals what happened. Archaeologists investigate what destroyed the original Sin City, Sodom. A bold new theory suggests Stonehenge may be more than it seems.

Josh Gates investigates whether an ancient curse killed the explorers who discovered King Tut's tomb, the strange and untimely demise of nine students hiking in Siberia, and the mysterious disappearance of an influencer in the Nevada desert.

Newly unsealed records from a Victorian madhouse finally reveal Jack the Ripper's identity. Potential Yeti DNA gives clues about the mysterious beast. The shocking interruption of a live broadcast by a masked man has the world asking about Max Headroom.

Josh Gates steps into the past to examine unsolved mysteries, including the alleged alien abduction of Travis Walton, the bizarre death of American hero Charles Lindbergh's son, and the invisible attacks visited upon CIA operatives in Cuba. This special preview episode will air on Wednesday, October 30 at 9PM ET/PT ahead of the series premiere on November 27 at 9PM ET/PT on Discovery Channel.