This magnificent castle grew from a small Moorish fortress, and reportedly inspired two iconic Disney castles.

This century-old ruined temple was reborn as "The Church of Skate."

This "flat geyser" bubbles up out of the ground periodically like a disappearing river.

Translating as "The Jump of the Girlfriend," this stunning waterfall has a tragic legend behind it.

Mine shafts and hard pastries await visitors at this massive mountain of salt.

Of the many chalices in the running for the Holy Grail, this one in Valencia Cathedral sure looks the part.

Cliffside houses provide a spectacular view from their perch above the valley.

Volcanic rocks ground down into sand make this Spanish beach as black as night.

This enchanting natural park is a magical example of a temperate rainforest in Europe.

This magical space partly designed by Antoni Gaudi is one of the best examples of romantic gardening in the Mediterranean.

This former charity hospital for elderly clergy houses some of Seville’s most treasured paintings.

This stunning iron gate designed by Modernist architect Antoni Gaudí is filled with mythic symbolism.

A charming Spanish village sits atop this natural limestone overpass.

A Franco-era dam flooded (almost) everyone out of this centuries-old Aragonese town.

A completely underwater art museum sends a stark message about humans' impact on the environment.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

Village situated on a narrow volcanic escarpment.

Hidden behind a wall, Spanish nuns distribute their signature sweets on a revolving tray.

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

Natural stone arches form a walkable "cathedral" at low tide, then disappear entirely when the water returns.

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

Bacteria and algae give the salty water its bubblegum hue.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

A lush indoor jungle fills this bustling Madrid transportation hub.