A mechanical clock built in 1914, with a rotation of 12 historical figures on its face.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

Macabre museum devoted to historical Viennese murders.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

This small Estonian hill is covered in hand-made twig crosses that are said to bring good luck.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

Located in the house where Gustave Flaubert was born, this odd museum has more to do with medical grotesquery than the Western novel.

Detailed sandstone carvings show an array of symbolism and adorable animals.

Near Birmingham, England three and a half miles of top-secret tunnels housed a World War II “shadow factory” and a Cold War nuclear bunker.

The decaying ruins of Wales' first asylum for the mentally ill.

This abandoned asylum in Wales might look haunted, but it's still beautiful.