Once the fallout shelter of a dictator, this sprawling bunker is now a combined history museum and contemporary art gallery.

A naturally beautiful, seemingly bottomless deep blue spring.

These rose marble urinals are the most luxurious loos in Liverpool.

Gutted during the Liverpool Blitz, this architectural husk has been left destroyed in honor of the dead.

The Liverpool street made famous by the Beatles is real.

The quiet field that inspired one of the most famous songs of all time.

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

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

A medieval bridge stretches over a sulfur-rich river that leads to year-round natural hot springs.

A little-known cafe in an old copper bridge tower with 360-degree views of the harbor.

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

Bored potato-guarding Nazis etched their thoughts onto a brick storage building in Copenhagen's Meatpacking District.

Copenhagen's celebrated theme park and gardens.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

From afar it looks like someone's hat blew into the water, but closer inspection reveals a giant floating sculpture.

Portraits of musicians line Oude Binnenweg, the jazziest street in the city.

This hotel was once home to a steamliner company and became the final rest stop for Europeans heading to the New World.

The Netherlands' first car tunnel has an unusually rectangular shape.

An art installation memorializing a tram stop, which became a tram stop.

This colorfully-painted tunnel links two distinct parts of a historic neighborhood.

A dramatic art installation features a BMW flying out of a building in Rotterdam.

The location of the world's first telescope demonstration.

Strange secondhand shop showcasing taxidermy and oddies

Rich with fauna and flora, nature-lovers can walk across the sea at this UNESCO World Heritage spot.