The world's first and only three-segment bascule bridge folds up into the shape of a capital "N" to let boat traffic through.

This monument to those fallen in the World Wars is accompanied by a U-boat that Germany bought for a Deutsche Mark.

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

This ancient oak tree plays matchmaker for singles willing to branch out from the usual dating scene.

This old wooden funicular railway leads to a cemetery in the forest.

An old slaughterhouse now holds the largest collection of pig artifacts.

The largest brick bridge in the world.

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

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

This riverside restaurant has been serving customers since 1146.

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

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

The footprint of a frustrated devil in Munich's Cathedral.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

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

Daily jousts and dancing barrel makers in Munich's mechanical clock.

A striking 12th-century-style castle built on the edge of a cliff.

Ruins of a German Castle on top of a towering stone pillar.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

This viaduct serves as a reminder of World War II.

The highest point in Belgium is a staircase to nowhere.

The world's biggest pet store.

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