Overview
Tunnels filled with human bones lie beneath the streets of Paris, and this horrifying engineering marvel points to a dark secret; new discoveries reveal why this grisly underground death maze was built and why it was abandoned.
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4 - 1World's Strangest Ghost Towns April 04, 2019 -
4 - 2Secret of Supervillain Island April 11, 2019 -
4 - 3Escobar's Castle April 18, 2019 -
4 - 4Labyrinth of the Dead April 25, 2019 -
4 - 5Treasure of Outlaw Valley May 02, 2019 -
4 - 6Alaska's Fort Apocalypse May 09, 2019 -
4 - 7Alien Hell Portal May 16, 2019 -
4 - 8Pompeii's Gate To Hell May 23, 2019 -
4 - 9Haunting on Plague Island May 30, 2019