The world's oldest surviving anatomical theater, where "the dead are pleased to help the living."

This Stockholm art museum integrates many of its pieces into the surrounding outdoor areas and natural landscape.

It houses the remains of a 17th-century version of the Titanic.

This gem from the industrial age helps visitors and residents alike traverse hilly Stockholm.

This chimerical bridge/tunnel appears to dead end right into the sea.

A 19th-century subterranean reservoir repurposed as a contemporary art cave.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Visitors are treated to a stained glass kaleidoscope interior inside this work of art.

This bridge's unique architecture honors nautical heritage and encourages self-awareness.

This beautiful deer park was built so King Charles I and his court could go hunting while escaping a deadly plague outbreak.

A community of artists and entrepreneurs seeks a simpler life on London's waterways.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

Collection dedicated to brands, packaging and advertising.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

This hidden green space is the city's second largest conservatory.

Historic cuisine meets fine dining in a hotel-restaurant overlooking Hyde Park.

The curios of pharmacist and collector Henry Wellcome.

This inn of the court provides a fascinating window into London’s legal and architectural history.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

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.

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.

The world's largest wooden structure.