Berlin's old airport.

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

Metro station with a claim to rock n' roll fame.

A restaurant and observation deck built in a unique broadcasting antenna.

The "Prussian Versailles" that is as glorious today as when it was built.

According to a satirical conspiracy theory that persists today, this German city of 300,000 is a hoax invented by the CIA.

This proud Teutonic warrior rises out of a German forest heralding a victory and measuring lightning.

This incredible stone temple is a monument to death, victory, and fantasy architecture.

Between Neo-Pagans and Neo-Nazis, these strange rock formations have a curious cult following and a very strange history.

The architect of this fanciful complex called it an "oasis for humanity and nature in a sea of rational houses."

The real life town from the Pied Piper of Hamelin has a mechanical puppet show that retells the famous story many times a day.

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.

No need to strap in for a “ride” on this walkable roller coaster.

This futuristic German television spire is actually the world's largest digital clock.

Twisted buildings adorn the banks of the Rhine river.

Largest illuminated advertisement sign in the world.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

The last bastion of Roman presence north of the Alps looms over a German town.

The birthplace of Karl Marx is now a museum dedicated to the communist revolutionary's life and work.

An encyclopedic collection of mammal penises.