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

A magnificent, long-abandoned castle built in the wake of the reconquest of Spain.

A lush indoor jungle fills this bustling Madrid transportation hub.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

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

Commonly acknowledged as the only public monument to the Devil himself.

The only urban monument in the world designed by the great surrealist painter Salvador Dalí.

The little church's beautifully frescoed ceiling has earned it the nickname “the Sistine Chapel of Madrid.”

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

Sculpture garden and miniature golf course blend together in the oversized backyard of a Minnesota sculptor.

A six-story, asymmetrical tower filled to the brim with scientific experiments.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

An opulent monument built for a duke who donated his entire fortune to the city of Geneva.