Holy Grotto of Montserrat Monastery holds one of Europe's mysterious black Madonnas.

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

Abandoned waterpark turned counter-culture mecca.

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

A charming Spanish village sits atop this natural limestone overpass.

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

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

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

At the foot of a waterfall lies a peaceful swimming lagoon and evidence of over 60,000 years of human habitation.

This whimsical winery by Antoni Gaudí looks ripped from the pages of a fairytale.

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

A Spanish forest is filled with mysterious stone carvings.

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

Village situated on a narrow volcanic escarpment.

The world's largest wooden structure.

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

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

Considered the birthplace of the Copper Age and Bronze Age, the river is tinted red from 5,000 years of mining.

A lush indoor jungle fills this bustling Madrid transportation hub.

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.

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

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

Wonderland replication in progress by one persistent man.