Season 4: Episode 6

Season 4: Episode 8

Mysteries of the Abandoned (2017)

Season 4: Episode 7

Alien Hell Portal

TMDb

Air Date:

2025-12-06

Genre

Documentary

Release Date

2017

End Date

2025

Episode Description

A 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.

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Cast

Kasper Michaels

Nazi Ghost Town

Curse of Hell Island

Phantoms of Chernobyl

Wild West Apocalypse

Soviet Doomsday Device

The Tesla Conspiracy

Armageddon Highway

Curse of the Haunted Prison

Arctic Hell Pit

Desert Ghost Fort

Conspiracy on Devil's Mountain

Secrets of the Alien Shrine

Amazon Ghost Town

Sea Fortress of Doom

Doomsday at Dragon's Teeth

Nightmare on Blood Mountain

Underwater Ghost Prison

America's Doomsday Town

City of the Damned

The Town That Disappeared

Nazi Death Star

The Real Shawshank

Secrets of Alien Stonehenge

World's Strangest Ghost Towns

Secret of Supervillain Island

Escobar's Castle

Labyrinth of the Dead

Treasure of Outlaw Valley

Alaska's Fort Apocalypse

Alien Hell Portal

Pompeii's Gate To Hell

Haunting on Plague Island

Jungle of the Damned

American Atlantis

Haunting of Heartbreak Castle

Kingdom of the Vanished

Journey to Outcast Island

Secrets of the Doomsday Caves

The Devil's Prison

Curse of Satan's Catacombs

The World’s Strangest Disaster Zones

Swamp of Despair

End Times on Lake Michigan

Hell on Blood Island

Florida Doomsday Castle

The Killer in the Castle

Towers of Blood

The Thing on Hell Mountain

Anarchy on Ireland's Alcatraz

House of Horror

Nightmare at Fort Paranoia

Into the Murder Labyrinth

American Ghost Park

Secrets of Mafia Island

Factory of Death

Ghosts of Black Mountain

The Doom of El Dorado

Ruins of the Rust Belt

Mystery of the Alien Base

Ghosts of the Cursed Castle

Ruins of Disaster Park

Fortress of Nuclear Secrets

Plague on Hell Island

Florida Death Fortress

Hitler's Nightmare Palace

Alien Ghost Tower

Russian Mafia Resort

Ghosts of Mount Fortune

Chinese Nuclear Box

Derelict Housing of Protest

The Beached Leviathan

Desolation of Ponte City

Bangkok's Ghost Tower

Ruins of the Nazi Resort

Romanian Royal Desolation

Ruins of the Zoo Fortress

Hidden Hell of Angel Island

Ghost Village of Nazi Invaders

Remnants of Traitor Chateau

Remnants of Alien Contact

Psychiatric Ruins of Scotland

Desolate Remnants of Agdam

Hidden Tunnels of Gibraltar

Remnants of Rocket Complex

Secret Vaults of Scotland

Ruins of Variety Theater

Curse of Cowboy Mountain

Castle of the Nazi Occult

Urban Ruins of Varosha

Historic Remains of USS Hornet

Liberia’s Tower of Ruin

Penthouse Palace

Rock 'N' Roll Island

K-Pop Dreamland

Fake News Fortress

Turkish Wonderland

Korea's Joan of Arc

Gunslingers and Gangsters

Gangbusters and Gun Battles

Propaganda Palace

Hunt for the Nazi Gold Train

Schindler's Deception

Operation Just Cause

Defenders of the Panama Canal

The Desert Pirates

Ghost Skeleton Coast

The Newark Rebellion

Soviet Slam Dunkers

Ghost Town in Palermo

Revolution in El Paso

The Island of No Return

Japan's Poison Island

The Nazis' Last Stand

Cold War Cover-Up

The Invisible Enemy

Churchill's Shadow War

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