The site of the first battle of World War II.

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

The small alleys in Lübeck's Old Town are a result of medieval urban sprawl.

Legendary site where an evil bishop was devoured by rodents.

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

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

Every hour the doors open to reenact the legend of the heroic mayor who saved his town by drinking a gallon of wine.

A stunning two-story timepiece within a medieval Brick Gothic church.

This lurid German fountain plots the sad course of marriage from dating to death.

Twisted buildings adorn the banks of the Rhine river.

Hamburgers are intensely proud of their tunnel beneath the river.

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

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

This former steel and coal plant is now a neon-lit industrial fantasia.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

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

This "floating railway" is one of the world's oldest monorail systems.

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

An underground city of salt.