This castle ruin in the middle of nowhere is a gem for wildlife enthusiasts.

There are no crying babies in this neck of the woods.

One of the world's few mounted blue whales, its jaws are hinged open allowing visitors to descend into a lounge.

Dedicated to a song so popular the request to "Play Shoreline" became part of Swedish culture.

The charming storybook building now houses a small police museum.

A Gothic-inspired fish market is Gothenburg's best place to find loaves and fishes.

A statue of the heroic plumber stands outside a company that bluffed its way into being Nintendo’s Scandinavian distributor.

Once the center of power for the region's various factories.

Walking through this narrow gorge will make you feel like you've fallen into a fairytale landscape.

Hamburgers are intensely proud of their tunnel beneath the river.

Hamburg's first legal sex work is relegated to a gated street that still does not allow pedestrian women.

The only remaining U-boat that is still floating never actually saw any action in World War II.

One room inside this building mesmerizes all with its parabolic dome.

The only microgravity tower in Europe can produce nine seconds of weightlessness.

Eight naturally mummified bodies in glass coffins are housed in an underground crypt.

One of the oldest wine cellars in Germany is now a restaurant beneath Bremen's town hall.

A stunning gilt bronze relief denounced by Hitler as "degenerate art"—even though it was dedicated to the Nazi leader.

Böttcherstraße's bells, extolling Nordic virtues and the great conquerors of the world.

This 165-foot water tower has been supplying the residents of Varel with drinking water for more than a century.

The ruins of a castle sat decaying in this park for years before a massive renovation restored this area to its past beauty.

The remains of a Dominican friary, once one of the largest of its kind in the United Kingdom.

This sculpture commemorates a naturalist and an illustrator whose work was a forerunner to modern field guides.

This century-old grotesque has a mysterious history and may not actually be a rabbit.

The Siege of Naarden ended in 1814, but the cannonballs embedded in the town church remain.