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.

These lights mark the area of Rotterdam that was bombed and burned in 1940.

A statue of the second-tallest Dutchman in history.

This hotel was once home to a steamliner company and became the final rest stop for Europeans heading to the New World.

Four giant movable street lights decorate this modern Rotterdam square.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

The world's first combination ski slope and power plant.

This sublime architectural marvel is a rare example of an expressionist church.

An ultra-modern diversity park in Denmark has turned an entire city block electric pink.

Six beautiful wooden giants are hidden around Copenhagen.

The remnants of a WWI naval mine that once terrorized the country now decorates a street.

An abandoned lighthouse awaits its destiny: being buried under shifting sand.

The highway's southernmost spot is a beloved local attraction.

A building so large that it has its own weather.