Berlin's old airport.

A Danish fisherman spent 25 years covering nearly every inch of his home with tens of thousands of shells as a gift to his wife.

An abandoned lighthouse awaits its destiny: being buried under shifting sand.

A beautiful photography exhibition space housed in a former church.

This bellfry was once said to be the Devil’s lair—or perhaps the home of a mischievous gnome?

An underground museum of monks, bones, and medieval ruins.

This Danish rock field is actually a sprawling ancient cemetery holding the bodies of 700 Vikings.

The most visited, and possibly most controversial, museum in Germany.

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

A museum specifically dedicated to the Trabant, one of the iconic automobiles of the GDR.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

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

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

Metro station with a claim to rock n' roll fame.

This art installation at an abandoned lipstick factory has distinct anti-capitalist vibes.

This risqué sculpture, based on a Hans Christian Andersen fairy tale, caused outrage 35 years after it was erected.

Generations have refused to move this doll from its dusty resting place to preserve a castle from a watery fate.

The great polar explorer is remembered in this far northern town, where he embarked on his final expedition.

The world's northernmost aquarium looks like it has fallen over.

The rusted hull of a WWII German destroyer pokes above the surface in a Norwegian fjord.

The traveling wares of Denmark's most famous author.

Museum on earth sciences featuring a recreation of a famous curiosity cabinet.

Opulence and fantasy collide in this royal chair which is supposedly made with unicorn horns.

Site of the first radio and telephone broadcasting companies in Copenhagen.