Tables of secondhand books fill the inner courtyard of this 17th-century stock exchange.

An astounding collection of taxidermy, fossils, skeletons, and even a few strange live beasts.

Museum in a swimming pool where the water still flows.

Lavish royal estate punctuated with heated greenhouses.

A gender-bending antihero's grave, where lies the inspiration for both book and film.

One of the largest burial mounds in the Netherlands and Belgium.

A top-secret bunker now turned museum, is an eerie look at what life would have looked like in the event of nuclear war.

This historical Netherlands fortress still bears the marks of its single siege.

Thousands of flowers create enchanting pink tunnels over the city streets.

Take a walk in a recreation of ancient Rome.

These tenacious 14th-century towers defied demolition and are now a fairytale vacation rental.

This mine is home to the largest man-made hole in Europe.

The body of at least one victim of a construction accident was left behind in the collapsed pylon, buried under tons of concrete.

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

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

An industrial relic is now one of Europe's most staggering art spaces.

Be it nature, art, or abandoned military architecture this eclectic German "museum" has you covered.

An electrical pylon under whose legs a normal gauge train can run.

Twisted buildings adorn the banks of the Rhine river.

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