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

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

Cold war icon and onetime "hole" in the iron curtain.

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 20-mile causeway that separates the Netherlands from the sea.

An awe-inspiring giant blue whale jaw bone stands in the center of this Dutch island.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

Go inside a revolutionary, cage-less zoo where 35 species live and some of them roam free alongside their human visitors.

This fairy tale forest hides scenes from some of the more obscure and bizarre Western nursery stories.

The world’s first interactive human body museum also serves as a chair for a giant orange man.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

The geographical center of Budapest is marked with a 10-foot-tall stylized zero.

A fake Transylvanian castle houses a cathedral of antlers.

A random tree outside a Budapest hotel has become a DIY shrine to the late singer.