Living trees form the structure of an open-air palace.

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

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

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.

An intricate and amazing house built by architect Karl Junker.

"The most colorful grottoes of the world.

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

Skeletons dressed in extravagant 18th century royal costumes cavort in the aisles of this German basilica.

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

A fascinating insight into daily life in the Eastern Bloc.

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

Ruins of a German Castle on top of a towering stone pillar.

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."

An old tram depot transformed into a vintage car paradise.

Residents of Berlin take their coffee and cake in one of the city’s most restful spaces: a cemetery.

One of the world's heaviest musical instruments towers within a popular urban park.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

A museum in the building where Nazi Germany signed its surrender tells the story of World War II from the Soviet perspective.

The world's first clock to use set theory as a measure of time required the invention of a new light bulb just to maintain its obtuse measurements.