This enormous censer uses a pulley system installed over 400 years ago.

An honorary saint of the people, Maria Adelaide became an incorrupt corpse, the clothes intact, exhaling “a strong scent of roses.”

Picturesque intersection of witchcraft and ancient Christianity.

A majestic hotel for dreamers rises from the center of a fairytale wood.

Seaside ruins of a settlement that date back to the first century B.C.

The "Little Ones," show Portugal in full miniature splendor.

Nestled in the mountains of Portugal is a tiny village made almost entirely of schist.

The medieval town's star-shaped walls are geometrically dazzling, though not entirely impenetrable.

An early work of the architect Álvaro Siza Vieira, these swimming pools blend into the beach.

An abandoned tuberculosis hospital said to be haunted by the patients who died within its walls.

Local lore says the devil built this beautiful medieval bridge to help a fleeing bandit.

A submerged village appears when dam levels drop.

A stunning 18th-century site where pilgrims ascend by a series of punishing stairs only to return via funicular.

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

This macabre masterpiece of a mural is one of Francisco Goya's "Black Paintings."

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

A once grand hotel now sits eerily abandoned in the Catalan countryside outside Barcelona.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Inside a former cabaret, seven floors of erotic art.

The celebrated eyesore created by starry-eyed sweethearts.

This demon atop the Notre-Dame de Paris looks utterly bored.

This bridge was constructed from the rubble of the infamous Bastille.