One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

This knobby, drooping New Orleans oak is a favorite place both for climbing and for meeting giraffes.

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

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

One of the world's heaviest musical instruments towers within a popular urban park.

Cold war icon and onetime "hole" in the iron curtain.

A fascinating insight into daily life in the Eastern Bloc.

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

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Real bones which are said to have belonged to a Polish dragon.

Budapest's Communist-era statues, banished to the suburbs.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

A surreal statue honoring Prague's favorite literary son.

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

This automated sculpture of two men peeing will spell out text messages with their micturition.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

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

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

What looks like a suicide in progress is actually a statue of Sigmund Freud.

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