On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

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

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

A surreal museum of extraordinary industrial objects.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

World War II ended before these tunnels built to protect vital oil from Japanese bombs were ever used.

A colorful street named for the legendary Australian rock band.

This sublime architectural marvel is a rare example of an expressionist church.

Cairns built to bring travelers good luck stretch across the land like miniature stone mountains.

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

Every hour a secret compartment drops from this giant pocket watch, revealing a lovely surprise.

This remote island, home to the easternmost point in Denmark, once hosted pirates and a military fortress.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

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

A public display of random paleontology.

A symbol for the opposition to nuclear power around the world.

This colorful artistic feature atop a Danish art gallery allows visitors to stroll through a rainbow.

Denmark's famous pseudo-hill.

Iron Age "bog person" preserved for over 2,300 years.

Swedish skyscraper with a 90° twist.

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

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