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.
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.
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.
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.
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.