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

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

Berlin's old airport.

A suspended footbridge allows for traversing this gorge carved through the French Alps.

It's said the devil used this mushroom rock as a table for a late-night meal.

This tri-part waterfall is a little bit of fairytale beauty in the heart of Luxembourg's Little Switzerland.

This bike path was sunk below water level for maximum wonder.

Part modern art project, part traditional chapel, this see-through church is only substantial from the right angle.

A spiralling hourglass-shaped tower rises from the forests in Denmark.

This large open-air museum showcases the ordinary lives of the people of the Netherlands and pre-industrial crafts and practices.

Located inside Hoge Veluwe National Park, this museum began as the private collection of a prominent female art collector.

The cutest way to stay safe in traffic.

This colorful artistic feature atop a Danish art gallery allows visitors to stroll through a rainbow.

Vortex-shaped aquarium hosts Europe's largest school of piranhas and other ocean creatures.

A public display of random paleontology.

This inverted metropolis model is the artist's "revenge" for not being allowed to have a doll house as a kid.

Four alabaster giants contemplate the tides on the shore of Denmark.

The tallest mountain in mainland Netherlands isn't actually very tall.

Abandoned since 1998, this train station has become an oasis for urban explorers.

Caves famous for the dragon-slaying saint who lived there.

This giant wire frame man sculpture is crouched in contemplation.

Pull up and have a drink at a museum filled with hundreds of years worth of shipwreck artifacts.

The tallest waterfall in the Netherlands is a lovely, stepped feature that is only 50 feet tall.

A dramatic art installation features a BMW flying out of a building in Rotterdam.