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

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

Barça football fans might see the insignia hidden in a church window as a divine sign.

Spain's stunning solar energy plant.

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

An eccentric collection of antique items shares space with a prop-quality witchcraft museum.

Bacteria and algae give the salty water its bubblegum hue.

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

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.

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.

This surreal-looking tree pruned more than 1,000 years ago is still producing olives for oil.

This abandoned mansion has a window for every day of the year, and is a temple for ghost hunters.

This art installation at an abandoned lipstick factory has distinct anti-capitalist vibes.