An abandoned airport in the middle of nowhere.

The extensive relics of an ancient Roman and Phoenician fish processing plant hide in a town park.

This line of 12 tower mills described in the story of Don Quixote is among the most iconic landscapes in Spain.

The world's largest wooden structure.

Considered the birthplace of the Copper Age and Bronze Age, the river is tinted red from 5,000 years of mining.

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

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

Rare karst landscape eroded from a flat seabed.

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

Holding the current title of "biggest chair in the world," it stands with little fanfare in Lucena, Spain.

Single runway interrupted by a busy road that cuts across its middle.

This quaint Spanish village agreed to be painted blue as a marketing stunt but found that they preferred it that way.

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

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

Moorish signal station on a stratgic rocky outcrop.

A Spanish town built into the cliffs.

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

The highest peak in mainland Spain is said to be the final resting place of a Muslim king.

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

A house covered entirely with shells.