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

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

A lush indoor jungle fills this bustling Madrid transportation hub.

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

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

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

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

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

A curious carving hides on a marble column in the Mosque-Cathedral of Córdoba.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

This 19th-century fountain's namesake animal isn't what you think it is.

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

The world's largest wooden structure.

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

Hidden behind a wall, Spanish nuns distribute their signature sweets on a revolving tray.

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

An eerie collection of the surviving structures from a past celebration of the future.

A 16th-century Andalusian palace.

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

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

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.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.