American soldiers discovered Europe's best one-liner at the end of World War II.

Each year melting snow turns these Austrian hiking trails into scuba zones.

Beautiful Austrian natural history museum with carved ceilings and row after row of ancient taxidermy.

Handsomely crafted representations of our round planet.

A small museum filled with over 1,000 clocks, and one particular clock calibrated to run until the year 9999.

Mysterious painted skulls in Moravia.

Europe's second largest ossuary wasn't discovered until 2001.

The walls and ceiling of this Polish church are decorated with thousands of skulls, with another 21,000 skeletons just below.

Two stunning 17th-century libraries and a cabinet of curiosities.

A crucified and bearded female saint.

This ancient Chinese observatory still contains early astronomy technology.

This attraction was abandoned after the Chernobyl disaster.

A museum of alchemy and a basement laboratory all housed in an ancient building in a Gothic tower.