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

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

One of the largest ossuaries in Spain is packed from floor to ceiling with bones.

This magical space partly designed by Antoni Gaudi is one of the best examples of romantic gardening in the Mediterranean.

One of the world's oldest universities houses an incredible collection of anatomical models, mummified body parts, and human bones.

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.

Stunning Roman aqueduct used for 1900 years and still standing.

Possibly the oldest church in Barcelona, this basilica has its pagan and Christian mythologies all mixed up.

The world's largest wooden structure.

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

This whimsical winery by Antoni Gaudí looks ripped from the pages of a fairytale.

These magnificent city walls rise from the barren sun-baked Spanish plains like something straight out of a fairytale.

Mountain where Jesus was first tempted by the Devil.

This cemetery features modernist statues as strange as its name.

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

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

Construction of Barcelona's iconic (but controversial) church is expected to be 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.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

Museum preserving torture methods from the past.

This historic orchard contains Northern Europe's largest collection of paradise apple trees.

Site of the first radio and telephone broadcasting companies in Copenhagen.

The original home of the Lego has a huge amusement park dedicated to the iconic plastic toy.

An abandoned lighthouse awaits its destiny: being buried under shifting sand.