This German "living museum" is maybe a bit too immersive.

This TV tower once secretly housed a GDR intelligence team.

On the highest peak in the Harz Mountains, science and the occult faced off in a failed attempt to turn a goat into a boy.

A preserved college lock-up that recalls a clubhouse approach to discipline.

The monumental home of Prussia’s eccentric "Cannon King."

Tiny castle in the middle of the Rhine made you pay to pass.

An officers prison camp believed to be impregnable by the Germans saw over 30 successful escapes.

In this brilliant blue spring in Germany, legend has it that a sad mermaid learned to finally laugh.

Böttcherstraße's bells, extolling Nordic virtues and the great conquerors of the world.

The castle where Martin Luther secretly translated the New Testament from Greek to German while in hiding.

The NASA scientists behind Apollo 11 started out developing Nazi weapons at this abandoned German rocket factory.

This East German military command bunker was ready for World War III.

The first (but not only) upside-down house in Germany.

Reminders of the Battle of Berlin still scar the railway.

A former Nazi lookout tower with a magnificent view of the Rhineland.

A towering monument to war, located on a beautifully peaceful hill.

The prison where Hitler wrote "Mein Kampf," and 278 Nazis were later executed for war crimes.

A tiny island is connected to the mainland by a private railway that residents travel in their own personal wagons.

A museum in the building where Nazi Germany signed its surrender tells the story of World War II from the Soviet perspective.

After a nearly successful attempt on Hitler's life, the conspirators met their fate in the courtyard of this Berlin building.

There are two dozen tanks just sitting in an open field in Lower Saxony.

This former Nazi castle was built as a school to train what would have been the future of the Third Reich.

Germany's Glienicke Bridge has a shady history of clandestine meetings, espionage, and spycraft.

The largest brick bridge in the world.