The world's last remaining store of its kind.

Among the oldest structures in Madrid, these Moorish walls once guarded the medieval city of Mayrit.

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

This quaint Spanish village agreed to be painted blue as a marketing stunt but found that they preferred it that way.

"Alleys of Stone" form natural mazes in Spanish natural park.

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

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

Numerous sculptures set along hiking trails symbolize and idealize the relationship between man and nature.

A charming Spanish village sits atop this natural limestone overpass.

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

In the fictional world of Kcymaerxthaere, celestial wonders marked a portal to a powerful route of travel at this site in Madrid, Spain.

This awesome Spanish castle is so fantastical it was actually used on Game of Thrones.

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

An isolated village literally built into the crevices and rock formations of a mountain.

These magnificent city walls rise from the barren sun-baked Spanish plains like something straight out of a fairytale.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

A Spanish forest is filled with mysterious stone carvings.

A landscape decorated with enormous skull sculptures.

The studio of Catalonia's most famous theatrical designer remains exactly as he left it.

A gravity-defying "devil's bridge" that has a surprising architectural feature for its stability.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

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

An architect transformed this abandoned cement factory into his castle-like workshop.

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.