The oldest private art gallery in all of Hungary.

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

A triumphant marble and bronze fountain depicting a 15th-century Hungarian king and his hunting party.

A museum that chronicles the history of the Nuremberg Trials for Nazi war criminals in the building where the trials were once held.

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

This strange sculpture depicts a giant nightmare hare crushing a man to death beneath its colossal bulk.

During World War II, the Nazis repurposed this beer cellar to store stolen artwork.

One of the most easily accessible examples of the rare 1960s UFO houses.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

Housed in an old church, this hunting museum holds a collection of mythical bird-rabbit creatures.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

People have been placing babies on these lilies for photoshoots since the Victorian era.

The location of the world's first telescope demonstration.

A modern reimagining of a medieval city gate.

These lights mark the area of Rotterdam that was bombed and burned in 1940.

Old ships and machinery fill a historic harbor in the city that's home to Europe's largest port.

Rotterdammers' dirty minds gave this Santa a dirty nickname and cursed it to a life of wandering.

A giant yellow phallus sculpture hidden in the gardens of the Museum Boijmans Van Beuningen.

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

A little sculpture with a large wardrobe.

Most prolific publishing house in the 1600s open to the public.

According to this bar, God gave an “11th commandment” to Antwerp: Thou shalt drink beer.

Yup, that's a 330-foot yacht passing over the highway.

A 'living museum' in Leiden, the oldest of its kind in the Netherlands.