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

Devastated landscape used for hundreds of years by the Romans as their primary mining site.

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

Possibly the oldest church in Barcelona, this basilica has its pagan and Christian mythologies all mixed up.

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

A charming Spanish village sits atop this natural limestone overpass.

Earth's rocky history has rarely glittered so brightly as it does in this Spanish museum.

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

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

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

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

A former steam-powered mill from the 1800s is now an industrial park with a giant steel dragon slide.

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

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

The morbid items in this small and hidden museum are not for the weak stomached.

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

A Romanesque tower appears when water levels drop.

A once-secret library of Freemason history in Catalonia.

Moorish signal station on a stratgic rocky outcrop.

The earliest known map to show America, discovered by accident at a Paris bookshop.

Of course Salvador Dalí lived in a castle...

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

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

This amazing abuela became a diehard metal fan late in life and an icon of Madrid's '80s rock scene.