Formerly the world's largest, this Willy Wonka-esque contraption runs 24/7.

A rococo room covered entirely in porcelain originally constructed for another royal residence.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

In the past, Renaissance sex workers were encouraged to entice customers on this bridge.

The pile of books behind the dignified writer gave the statue a most undignified nickname.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

A quiet Sicilian village is home to a cafe that had an important role in "The Godfather."

A popular legend claims that the famous pizza was invented at a restaurant in this alley.

Drink wine handed out through a window as part of an age-old tradition.

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

Some of the greatest minds in the history of Hungarian art and science converged in this café.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

The beautiful baroque library of the Hapsburg empire.

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

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

This fountain of a little boy that spits on passersby at erratic intervals is a town icon.

Every half hour the eye-rolling clock face sticks out its tongue to mock the good citizens of Koblenz.

A condensed piece of China floating in a Dutch harbor.

The largest flower auction house in the world.

Birthplace of the "Cat in the Cradle" and a cluster of iconic, original windmills that let the Dutch tame the seas.

Inspired by "The Starry Night" this Dutch bike path turns into a glowing work of art each night.