The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

An unsettling sculpture of a boy hanging out in a street in Ghent has been baffling visitors for years.

A Museum of Psychiatry in a still-operating mental institution.

To enter this cluttered-yet-cozy sanctum of Belgian brews, ring the bell and tell the gatekeepers you've come “to taste beer.”

An open-air sewer system that was covered piece-by-piece over 300 years.

A peculiar museum that includes many drunken tales, a drunk driving simulator, and much more.

A World War II evacuation tunnel turned into a history display of Croatian state and people.

This scale model of our solar system hid in plain sight for years before a physics team sought out all the planets.

This former estate of a fascist leader is now a burnt out ruin leading to a system of secret tunnels.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.