A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

Once the grandest synagogue in medieval Spain, it now stands as a memorial of the 15th-century Jewish exile.

A curious memento mori hangs in the magnificent Cathedral of Segovia.

Spain's largest bullring offers a unique glimpse at architecture and history.

The fragmented remains of a massive public bath connected to the city's water supply.

This underground church is topped with a 500-foot cross that is seen by many as a beacon of fascist hubris.

A complimentary beverage is offered to the bodega's resident rodents every day.

The ruins of a 2,000-year-old Roman fishing village perched on one of the best beaches in Spain.

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

Holy Grotto of Montserrat Monastery holds one of Europe's mysterious black Madonnas.

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.

An iconic and controversial ancient Iberian funerary urn with a hauntingly penetrating gaze.

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

A 16th-century Andalusian palace.

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.

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

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

The world's largest wooden structure.

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

A lush indoor jungle fills this bustling Madrid transportation hub.

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

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

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