One of Europe's largest supercomputers is housed inside of a disused chapel.

Believed to be the largest Spanish sculpture affixed to a housing block.

A place steeped in history that may be best known as the set of a 1960 film.

A whimsical garden of outsider art in the Spanish countryside.

This magnificent castle grew from a small Moorish fortress, and reportedly inspired two iconic Disney castles.

An early 20th-century bullring converted into a modern shopping center.

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

This home designed for chocolate magnate Antoni Amatller is an exquisite treasure-box of Catalan Modernism.

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

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

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

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

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

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

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

A room filled with frescos that make it seem like the walls are crumbling down while giants die in despair.

This basilica is dedicated to two saints, one of which is known more for his famous quote.

A small island in Lake Garda that was used as a burial site, pirate hideout, and a monastery.

On the shores of Lake Garda, the ruins of a Roman villa that allegedly belonged to the poet Catullus.

Southern Italy's spinning top village.

This winding road through an Italian canyon may be the most scenic drive in the world.

An Italian hillside ghost town.