This riverside restaurant has been serving customers since 1146.

Tiny memorials honor individual victims of the Holocaust.

When a medieval fire claimed the original St. Stephen’s Cathedral, it sparked a pattern of unquenchable organ building.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

Horrifically creative torture devices and shame punishments line the walls of this chilling museum.

The "Prussian Versailles" that is as glorious today as when it was built.

These brass bunnies honor the rabbits that dominated the no-man's-land around the Berlin Wall.

This 600-year-old home seems to defy physics.

A Black Forest cuckoo clock theme park features one timepiece big enough to walk inside.

Slaughterhouse Five opens its dank doors to fans of Kurt Vonnegut.

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

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

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

An intricate and amazing house built by architect Karl Junker.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

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.

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

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

"World's largest scrap metal sculpture" stands in an outdoor sculpture garden in the middle of Wisconsin.

A floating cat sanctuary on an Amsterdam canal.