The footprint of a frustrated devil in Munich's Cathedral.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

Oddly enough, a pair of Wolfs funded the construction of this Little Red Riding Hood sculpture.

A serious museum dedicated to two German comedians.

Eighty million natural history specimens call this gargantuan museum home.

This pedestrian footbridge honors Pero Jones, an enslaved African who lived in Bristol.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

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

Third time's a charm, or in this case, two testicles are.

The secret medieval communication system will whisk your words above the noise of the crowd.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

See what remains of a once grand ancient Roman circus.

A small sculpture that pays homage to the famous bronze ear of Ca de l'Oreggia—or does it?

The mark of the Devil's horns on a marble column in Milan.

Just across from the "Last Supper" painting is the famous painter's vineyard, a gift received for creating the masterpiece.

Real bones which are said to have belonged to a Polish dragon.

This grubby wall is said to be one of the Earth's esoteric energy centers.

Inside this Krakow church, an explosion of psychedelic color.

Remnants from a time before electricity.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

A replica of a famous Greek statue adorns the front of the unusual home of architect and alchemist Humberto Pittamiglio.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

A lush indoor jungle fills this bustling Madrid transportation hub.