Abandoned waterpark turned counter-culture mecca.

The lengthy skeleton of one of the tallest Spaniards of all time is on display in Madrid.

The oldest giants in Catalonia are now displayed in a 14th-century Gothic church.

One of the most spectacular bridges in Spain spans a narrow chasm that divides the city of Ronda.

An eccentric collection of antique items shares space with a prop-quality witchcraft museum.

The former 1920s mansion of a prominent Catalan developer was used as the Soviet Embassy during the Spanish Civil War, and there is still a bunker below the garden.

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

A 16th-century Andalusian palace.

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

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

A site where “the ravages of the war are more striking…than any other place in contemporary Spain.”

18th century anatomical amphitheater of the Royal College of Surgery of Barcelona.

Cursed swimming pool left abandoned is now a favorite of filmmakers and ghost hunters.

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

Of course Salvador Dalí lived in a castle...

One of the world's oldest universities houses an incredible collection of anatomical models, mummified body parts, and human bones.

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

One of the largest ossuaries in Spain is packed from floor to ceiling with bones.

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

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

Mysterious Spanish catacombs of unknown origins.

Partially collapsed lava tube and cave system complete with concert hall, underground pond, and unique albino crabs.

The chefs at El Diablo use heat generated by an active volcano to cook the food.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.