On the wall of this medieval walkway, a symbol of the Spanish Inquisition.

An abandoned horror film set sits eerily along a highway through Hollywood's "door to the desert."

A beautiful museum filled with thousands of chairs.

Towering high above the neighborhood of La Candelaria, the church is easily recognizable by its distinctive red-and-white striped facade.

After over 100 years out of service this landmark windmill once again turns as a symbol of Jerusalem's self-sufficiency.

This one-of-a-kind Roman arch is not actually dedicated to the god Janus.

A massive marble foot is tucked away in a small alley near the Pantheon.

Charles Dickens was not a fan of the ghastly wall dressings in this 6th century church.

This ancient market is often referred to as the oldest shopping mall in the world.

This ancient Roman prison is decorated with an upside-down cross not as blasphemy but as saintly tribute.

A forgotten "city of water" underneath the famous Trevi district.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

An alchemist's "magic door" stands in the middle of a Roman park.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

Open air sculptures by an eccentric and loin-clothed hermit.

A breathtaking and biodiverse wilderness in the mountain setting of Ernest Hemingway's "For Whom the Bell Tolls."

The world's most elegant power lines.

Salaguti's live-in museum: a fortress against criticism and consumer art.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

A darkly erotic open-air statuary in Catalonia.