This castle has links to Portugal’s founding and struggles for independence.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

Elaborate tile work in this railway station tells the story of Portugal.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

An open-air "garden" of mural art that changes weekly.

This colorful statue welcomes visitors to a Barcelona park.

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.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

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

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

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

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

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

This Roman arena once played host to bloody gladiatorial battles.

Long tunnels run under the ancient chariot racing circuit to the tower.

These ungulates have quite literally bounced back from the brink of extinction.

A spectacular walk on the flank of a gorge.

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

This enormous "cloth of the conquest" depicts the Norman invasion of England in mind-blowing detail.