Mysteries of the Abandoned Season 3 Episode 9
A Nazi fortress that could have changed history if it was finished, an underwater graveyard of unexpected American treasures, and a network of tunnels hiding a secret history of New York were abandoned for mysterious reasons. [note: this episode seems to have been omitted from the Science Channel’s web site]
Serie: Mysteries of the Abandoned
Episode Title: Nazi Death Star
Air Date: 2018-11-28