This "floating railway" is one of the world's oldest monorail systems.

Visitors can explore the role of mysticism throughout the ages inside this interactive museum of magic.

A stairway to heaven, or to nowhere at all.

The patron saint of spinsters grasps a container of dried blood.

A striking 12th-century-style castle built on the edge of a cliff.

A sprawling Baroque park with 300-year-old hydro-pneumatic waterworks.

This Berlin island is home to a flock of free-roaming peacocks, as well as a historic ivory folly.

This classic restaurant features a gorgeous mirror-clad room.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

A wunderkammer of mysterious objects and stories.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

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

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

The fairy tale castle of the "fairy-tale king."

This unique prehistoric funerary monument is notable for its distinctive boat-shaped design and exceptional preservation, offering a fascinating glimpse into the island's ancient burial practices.

Built between 1901 and 1908, this building is one of the most iconic examples of modernist architecture in Spain.

A stunning example of traditional salt production set against a dramatic volcanic landscape.

Believed to be the largest Spanish sculpture affixed to a housing block.

On market days, a tax collector sat in a small cave at the end of this arched bridge.

This cave in the heart of La Mancha is full of esoteric secrets.

A place steeped in history that may be best known as the set of a 1960 film.

A stone structure built thousands of years ago on the Iberian peninsula.

This set of Berber granary caves is now an interpretation center for the cave window structures in the Clarino valley.