A surrealist timepiece by the artist of melting clocks.

The celebrated eyesore created by starry-eyed sweethearts.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

An unusual round church in London with a Templar past.

One part local history, 99 parts gruesome haunted house.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

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

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

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

According to the Guanches, the aboriginal people of the Canary Islands, the king of evil lives inside this volcano.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

The "Prussian Versailles" that is as glorious today as when it was built.

A restaurant and observation deck built in a unique broadcasting antenna.

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

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

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

The most loyal of little dogs, or a Victorian era publicity stunt?

A museum marks and documents the site of the Titanic's launch.

Northern Ireland's Brobdingnagian stepping stones.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

The fairy tale castle of the "fairy-tale king."