Secret Nazi Ruins

Guided missiles, the Wasserfall, and the potentially war-changing V2 were dreamed up and tested in a base in Peenemünde.

When the Nazis took Ksiaz Castle in 1941, it wasn't for the view, and they got to work turning it into a fortress; secret staircases and elevators were built, while underneath, a vast network of tunnels was taking form.

As the Nazis embark on their dominate rise to power, a massive construction project secretly begins across Eastern Germany; using the latest tech, experts uncover an elaborate network of underground tunnels and bunkers with frightening ambitions.

The skeletal remains of strange structures are clues to a mysterious research installation secretly built by the Nazis in Western Poland; experts investigate and uncover top-secret military fuel development with a catastrophic purpose.

Experts uncover a mysteriously abandoned underground complex that may have hid something very dark.

A medieval castle-like complex in the remote mountains of Germany contains dark secrets to the Nazi's plan for world domination; experts investigate and uncover a nefarious training facility designed to groom elite Nazi personnel.

A labyrinth of tunnels carved deep in the Polish mountains leads to the largest underground Nazi weapons development complex ever discovered.

New discoveries reveal whether this abandoned mansion was a secret Nazi base intended for a sinister mission.

As the Soviet Army pushes the Nazis out of Poland, they discover a massive city of over 1,000 buildings that was unknown to the Allies; using the latest science, experts reveal how Hitler was able to keep this sinister place hidden for so long.

A secret weapons program in the heart of Austria could have caused trouble for the Allies and may have indicated nuclear plans being concocted by Hitler.

One of the largest Nazi bunkers ever constructed, outside the French town of Watten, is a missile facility with storage for 108 missiles and two launch pads.