Mysteries of the Abandoned Episodes
Season 4, Episode 1
Episode 1
Season 4, Episode 2
Episode 2
Season 4, Episode 3
Episode 3
Season 4, Episode 4
Episode 4
Season 4, Episode 5
Journey to Outcast Island
Season 4, Episode 6
Episode 6
Season 4, Episode 7
The Devil's Prison
Season 4, Episode 8
Curse of Satan's Catacombs
Season 4, Episode 11
Florida Doomsday Castle
Season 4, Episode 12
End Times on Lake Michigan
An abandoned industrial complex on the shores of Lake Michigan was once a top-secret military compound that protected America from enemy attacks; new discoveries reveal what really happened here and why the government turned its back on this juggernaut.
Season 4, Episode 13
The Thing on Hell Mountain
Season 4, Episode 14
Towers of Blood
Abandoned towers in southern Greece are the ruins of a fearsome warrior civilization descended from the Spartans, and new discoveries reveal the role these towers played during generations of violent blood feuds among the clans that lived here.
Season 4, Episode 15
The Killer in the Castle
An abandoned castle is the site of hundreds of horrific murders perpetrated by the mysterious countess who once lived there, a woman alleged to be one of the most prolific killers in history. New discoveries reveal what really happened here.
Season 4, Episode 16
Nightmare at Fort Paranoia
A strange bunker in a treacherous landscape once belonged a notorious dictator whose paranoid fantasies drove bizarre and elaborate feats of engineering. New discoveries reveal the secrets of these structures and the nightmares that built them.
Season 4, Episode 18
House of Horror
An eerie set of buildings in Paris is evidence of an unspeakable evil. New discoveries reveal the horrific things that happened here and why they were abandoned.