Its appearance in "Game of Thrones" may spur on the long-awaited restoration of this medieval shipyard.

This funky former tobacco factory is one of the most striking examples of Madrid's cultural diversity.

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

Occupied for six centuries by Franciscan Order nuns, this monastery is an amazing ode to Catalán Gothic architecture.

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

One of Antoni Gaudí’s earliest buildings, built between 1886 and 1890 for the industrialist Eusebi Güell.

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

The final resting place of the great navigator, or maybe his brother.

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

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

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

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.

This house's itty bitty size means no humans allowed.

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

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

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

A lush indoor jungle fills this bustling Madrid transportation hub.

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

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

Mountain where Jesus was first tempted by the Devil.

Barcelona's historic 19th-century sewers, whose foundations were laid in medieval times, are open to the public for exploring.

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