
Mysteries of the Abandoned
A strange complex of tunnels on the grounds of a mansion are under lock and key for a century.
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A strange complex of tunnels on the grounds of a mansion are under lock and key for a century.

In Alaska, the ruins of a massive compound point to eerie evidence of an apocalyptic mystery.

Tunnels filled with human bones lie beneath the streets of Paris; why this maze was built.

The ruins of a once-palatial compound contain the secrets of a notorious criminal.

On an island off the coast of Croatia, the mysterious ruins of a long-abandoned hideout exist.

A ghost town in the American West was once a Gold Rush hotspot and extremely violent.

The world's strangest ghost towns; new discoveries reveal why they were abandoned.

An alien Stonehenge; building filled with labyrinths; concrete track in the middle of nowhere.

Prison with dark past becomes setting of iconic Hollywood movie; alien monoliths on strange island.

A Nazi fortress; an underwater graveyard; a network of tunnels in New York.

A haunted lighthouse on Lake Michigan; a town where everyone vanished; tunnels beneath London.

Ballistic tests for the assassination of MLK; the mysterious Marfa Lights in Texas.

Testing lethal weapons; tunnels under Las Vegas; Internet rumors.

JFK's assassination is investigated 50 years later; a nuclear waste dump and US Quiet Zone.

The Tower of London is a centuries-old castle used as a prison steeped in blood and intrigue.

Scientists use technology to discover Venice's ancient foundations.

King Midas and his legendary golden touch is one of the most famous tales in Greek mythology.

According to legend, the ancient Roman city of Hierapolis hides a secret portal to the underworld.

The Pantheon is a 2,000-year-old temple with a secret; experts find out why it was built.

Experts investigate the secrets of seven lost cities; investigators use advanced aerial scanning.
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