A controversial art piece that harkens back to local folklore.

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

The facade of this 16th-century building is decorated with carvings of 300 seashells.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

Medieval village and microminiature museum.

Giant topiary dog once played a role in a terrorist bomb plot.

This stunning iron gate designed by Modernist architect Antoni Gaudí is filled with mythic symbolism.

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

Vibrant street art created with mixed media.

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

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

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

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

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.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

The world's largest wooden structure.

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.

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

A lush indoor jungle fills this bustling Madrid transportation hub.

An ancient Egyptian temple in the middle of Madrid, Spain.

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