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

A man-made slag heap that you can "ski" down, and is home to the world sandboarding championships.

Legendary site where an evil bishop was devoured by rodents.

A rare water-powered funicular, it uses a huge tank of water and gravity to do its work.

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

Cold war icon and onetime "hole" in the iron curtain.

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

The Bauhaus-style former industrial complex is considered the world's most beautiful coal mine.

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

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

Go surfing on this urban wave, "hacked" by local surfers.

These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The world's first clock to use set theory as a measure of time required the invention of a new light bulb just to maintain its obtuse measurements.

Twisted buildings adorn the banks of the Rhine river.

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

Solar observatory doubles as a daring display of Expressionist architecture, much to Einstein's chagrin.

Hitler's bleak vision of relaxation still stands as a mostly abandoned 10,000-room resort complex.

A unique hanging cable-car navigates through Dresden, the oldest suspension railway in the world.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

A former ironworks that was the first UNESCO industrial site.

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

Berlin's old airport.

Floating swimming pool within a moored vessel.