In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

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

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

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

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

A display of torture devices used in the Spanish Inquisition and other scourges of medieval Europe.

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

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

Among the oldest structures in Madrid, these Moorish walls once guarded the medieval city of Mayrit.

A 16th-century Andalusian palace.

This home designed for chocolate magnate Antoni Amatller is an exquisite treasure-box of Catalan Modernism.

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

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

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

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

The only urban monument in the world designed by the great surrealist painter Salvador Dalí.

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

A temple to modernity, tucked away amid Barcelona's more well known museums.

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

A lush indoor jungle fills this bustling Madrid transportation hub.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

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