These 18th century gardens tell a rocky story of the son of Odysseus.

A small but immensely extravagant palace built by the "Night King."

A long spiraling walkway winds through the woods, and around a copper beech tree at the center.

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

This historic stone bridge has an entire neighborhood clinging to its sides.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

A stairway to heaven, or to nowhere at all.

"The most colorful grottoes of the world.

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

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

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

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

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

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

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

This replica Viking village was created for a film that was never shot and is now open to visitors.

A Milanese café entirely designed by the American director Wes Anderson.

The Roman Emperor's lost summer home and grotto full of enormous sculptures sit along the Italian seashore.

Dug as a secret royal escape route, the tunnel became a wartime bomb shelter and dumping ground for vintage cars.

Erotic art covers the walls of the largest ancient pleasure palace.

This winding road through an Italian canyon may be the most scenic drive in the world.