This restaurant serves wood-fired fare served in a natural cave with a live spring.

The largest spring in Northwest Arkansas is also home to a sprawling botanical gardens and a historically significant bluff.

This monumental Jesus is often referred to as "Our Milk Carton With Arms."

An extravagant western hotel where every floor is the "ground floor."

This haunted hotel built on natural springs once served as a hospital for a quack doctor promising a cure for cancer.

This stone tower marks a lookout point over the historic Washington Crossing, and maybe some buried treasure.

Art historians have debated the identity of this medieval stone rider since the 19th century.

Tiny castle in the middle of the Rhine made you pay to pass.

Legendary site where an evil bishop was devoured by rodents.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

Every hour the doors open to reenact the legend of the heroic mayor who saved his town by drinking a gallon of wine.

Originally envisioned by King Ludwig II to rival Versailles, Herrenchiemsee's "New Palace" remains half-gilded for lack of funds.

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

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

A fearsome dragon clings to a corner of Munich's city hall.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

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

It's good luck to be mocked by this monkey.

This Nazi-built amphitheater was constructed on a sacred mountain site used by various German cults.

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

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

The curiosities and wonders of pharmacy in a delightful historic building.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.