An exact replica of a colossal Olmec head sits atop a pyramid within a Madrid traffic circle.

One of the most spectacular bridges in Spain spans a narrow chasm that divides the city of Ronda.

This lucky bronze frog was gifted to Madrid by a casino.

The oldest giants in Catalonia are now displayed in a 14th-century Gothic church.

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

This former charity hospital for elderly clergy houses some of Seville’s most treasured paintings.

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

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

Of course Salvador Dalí lived in a castle...

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

A charming Spanish village sits atop this natural limestone overpass.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

A completely underwater art museum sends a stark message about humans' impact on the environment.

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

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

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

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

The world's largest wooden structure.

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

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

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

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

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

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