Mysteries of the Abandoned

Season 4

TV-PG

The world's most incredible engineering projects are revisited to uncover why places full of mysteries and untold secrets are now abandoned ruins.

Where to Watch Mysteries of the Abandoned • Season 4

9 Episodes

World's Strangest Ghost Towns
E1
World's Strangest Ghost TownsThe world's strangest ghost towns are home to dark secrets, creepy buildings and eerie sights; new discoveries reveal why they were abandoned.
Secret of Supervillain Island
E2
Secret of Supervillain IslandOn a strange island off the coast of Croatia, the mysterious ruins of a long-abandoned hideout look like they once belonged to a James Bond super-villain, and new discoveries reveal why it was built and why they were abandoned.
Escobar's Castle
E3
Escobar's CastleThe ruins of a once-palatial compound contain the secrets of one of history's most notorious criminals, and new discoveries reveal why this high-security estate was built and why it was abandoned.
Labyrinth of the Dead
E4
Labyrinth of the DeadTunnels 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.
Treasure of Outlaw Valley
E5
Treasure of Outlaw ValleyA ghost town in the American West was once a Gold Rush hotspot and one of the most violent places in America. Today, there are legends of a secret treasure buried in the surrounding hills, and new discoveries might finally reveal its true location.
Alaska's Fort Apocalypse
E6
Alaska's Fort ApocalypseIn Alaska, the ruins of a massive compound point to eerie evidence of an apocalyptic mystery. New discoveries reveal why this strange marvel was built in the snowy wilds of the Last Frontier and why it was abandoned.
Alien Hell Portal
E7
Alien Hell PortalA strange complex of tunnels on the grounds of a bizarre mansion were under lock-and-key for a century. Since its rediscovery, some believe its mysterious place is a gate to hell. New discoveries reveal its secret purpose and why it was abandoned.
Pompeii's Gate To Hell
E8
Pompeii's Gate To HellNear the destroyed city of Pompeii, an eerie complex of underground tunnels snake beneath a volcano, and some believe these passages were intended as a gateway to hell. New discoveries reveal exactly why they were built and why they were abandoned.
Haunting on Plague Island
E9
Haunting on Plague IslandA strange complex of buildings on a remote tropical island was once home to a large seaside community, but today, locals avoid the area and claim that it's haunted. New discoveries reveal why this eerie place was built and why it was abandoned.