The art museum is decorated with creatively remodeled pre-Nazi swastikas.

The world's first combination ski slope and power plant.

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

Climb to the top of its spiral spire for spectacular views of Copenhagen.

Vortex-shaped aquarium hosts Europe's largest school of piranhas and other ocean creatures.

The northernmost point in Denmark is a turbulent sandbar created by two clashing seas.

Tiring of digging out the door to this church for every service, it was eventually abandoned to the sands.

One of the world's few mounted blue whales, its jaws are hinged open allowing visitors to descend into a lounge.

A small Denmark town displays a pair of titanic jaw bones as their community symbol.

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

A concrete mushroom that divided Stockholm residents for nearly a century.

Hidden in plain sight, Sweden's official ordnance datum is now abandoned.

This grisly exhibit houses skeletons and weapons from a devastating 14th-century clash.

An illuminated manuscript comprising the life's work of a lone monk, inexplicably decorated with a portrait of Satan himself.

This device was crucial to the Industrial Revolution development of Leeds.

The name of this suspended sculpture is Latin for "high horse," which is exactly what it is.

In a small courtyard resides this large mural that draws inspiration from Leeds and its history.

This sculpture of Edward of Woodstock is surrounded by eight Victorian lamp bearers.

Legend has it this spring formed at the spot where a medieval Swedish king was killed.

A museum dedicated to the history of psychiatric treatment featuring a gallery of art made by patients.

The three colorful women depict characters from a beloved children's story.

A cuddly version of a dark mythological creature now acts as the mascot of a town.

The single richest source of elemental discoveries in the world.

Crystal chandeliers brighten up this dark underpass.