Blue-green pools and smooth stones comprise one of Spain’s most idyllic hidden wonders.

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.

A charming Spanish village sits atop this natural limestone overpass.

One of Antoni Gaudí's least-visited works, an homage to Catalan patrimony that mixes neo-Gothic with Modernista forms.

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

A cemetery in Barcelona's Poblenou district is home to this touching funerary statue, which depicts death in the form of a winged skeleton.

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

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

Wonderland replication in progress by one persistent man.

A museum dedicated to the Spanish occult in a town that was terrorized by the Inquisition.

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

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

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

Week-long block party becomes a competition for the best decorated street.

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.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

A lush indoor jungle fills this bustling Madrid transportation hub.

Bask in the 19th century grandeur of an eccentric Freemason millionaire's private gardens.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

This semi-secret storybook hedge maze is also the oldest garden in the city.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.