Discovery

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Discovery Plus

Mysterious Worlds

A disintegrating tower, once a thriving cultural hub, now stands hollow and derelict in Monrovia, Liberia; experts investigate and uncover a landmark skyscraper left to decay in the wake of a bloody political coup.

Mysteries of the Abandoned

Liberia's Tower of Ruin

A legendary U.S. Naval war vessel now stands as a monument to space exploration in Alameda, Calif.; experts reveal how a formidable WWII aircraft carrier served a vital role in historic Apollo spaceflight recovery missions.

Historic Remains of USS Hornet

An entire city district of desolate streets and derelict buildings lies mysteriously untouched for decades in Eastern Cyprus; experts investigate and uncover a once opulent resort town suddenly entangled in a Turkish military invasion.

Urban Ruins of Varosha

An eerie castle with a supernatural attraction stands derelict in the dense forests of the Czech Republic; experts investigate and uncover legends of a concealed gateway to hell and links to horrific Nazi Germany occult experimentation.

Castle of the Nazi Occult

The bizarre remains of an Old West mining town lie mysteriously deserted high in the mountains of Maggie Valley, N.C.; experts investigate an abandoned ghost town theme park that some local residents believe carries a curse.

Curse of Cowboy Mountain

A once majestic theater hosting entertainment for generations in lavish surroundings now lies mysteriously derelict in Cleveland; experts investigate a record-breaking heavy metal concert event that would spell its eventual downfall.

Ruins of Variety Theater

A series of dark, subterranean vaults lie hidden beneath the bustling streets of Edinburgh, Scotland; experts investigate and uncover a vast network of tunnels and chambers that contain a history of opportunity, crime and destitution.

Secret Vaults of Scotland

The remains of a derelict industrial complex connected to a mysterious water canal lies deserted in the Florida Everglades; experts investigate and uncover an abandoned rocket testing facility that was critical in mankind's race to the stars.

Remnants of Rocket Complex

A forgotten military fortification connected to a network of secret tunnels are mysteriously hidden within the Rock of Gibraltar; experts investigate and uncover a derelict war-torn complex constructed for a highly classified WWII spy operation.

Hidden Tunnels of Gibraltar

The remnants of a desolate ghost town with a violent past lie in the shadow of the Caucasus Mountains in Azerbaijan; experts investigate and uncover a destructive ethnic and territorial conflict that forced the evacuation of an entire city.

Desolate Remnants of Agdam

The ruins of a mental health institution lie deserted in the Scottish woodlands; experts investigate and uncover the terrifying past of a notorious psychiatric asylum where many entered but few escaped.

Psychiatric Ruins of Scotland

A research complex housing two enormous satellites is now mysteriously derelict in the rural expanse of Woodbury, Ga.; experts investigate and uncover a facility where planetary scientists explored possible evidence of extraterrestrial intelligence.

Remnants of Alien Contact

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Some of the biggest engineering projects that lie in ruins; cities that are empty ghost towns, bridges that were never finished and roads to nowhere; these deserted places are home to many mysteries and untold secrets.

S9 E14 | Hidden Tunnels of Gibraltar