An eerie, derelict amusement park in Berlin.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

A program of Communist glamour in post-Stalin Poland is preserved in this colorful museum.

Poland's oldest surviving university building holds a wealth of historic science instruments including some used by Copernicus.

Communism's topsy-turvy effect on Poland has been brought to life in this wacky tourist trap.

Heralded as one of the prettiest castles in all of Czechia.

A collection of anatomical samples from one of the first anthropologists to suggest that humans reached North America by crossing the Bering Strait.

Buried five stories underground, this Soviet bunker is packed with gas masks and Cold War paraphernalia.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

The risqué mixed-media sculptures are supposedly a metaphor for Czech politics.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

Finland's oldest astronomical observatory once played a crucial role in seafaring and timekeeping.

Roughly 17 million letters to Santa have found their way to this Arctic Circle post office.

This lake-bound geographical marker sits at the point where three European countries intersect.

Quality time with reindeer in the stunning scenery of their natural Lappish habitat above the Arctic Circle.

An alien church provides much needed silence in the midst of a Finland shopping center.

Rent out a glass igloo to watch the Northern Lights like you live in the future.

This series of underground chambers contains Europe's largest subterranean lake that is slowly drained each day.

The house that took a plunge into the facade of a museum.

One of the best collections of wax anatomical models in the world.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.

Visitors dip into a variety of pools of what was once ice.

Ride a dragon train into a world of dwarves.

The largest ice cave in the world is thought to be the entrance to hell according to Austrian legend.