This site is both a remarkable reminder of the town's mining history and a fantastic government blooper.

In Spain, the ruins of a Roman military camp sit along a flooded section of a river.

"Satisfying" is a good way to describe these beautifully aligned rows of Spanish mills.

The Roman city was the birthplace of various emperors and is home to one of the empire's most impressive architectural feats.

An arresting arch punched straight through a mountain provides one of the most scenic spots, and challenging climbs, on the planet.

A whimsical garden of outsider art in the Spanish countryside.

Geological storytelling.

The remains of the second-oldest zoo in Europe can be seen within these library gardens.

A huge cathedral single-handedly constructed by one eccentric monk.

This small and often-overlooked museum holds some of Spain's finest artistic treasures.

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

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

Visit a surreal landscape so otherworldly NASA actually used it to train the Apollo 17 crew.

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

An exact replica of a colossal Olmec head sits atop a pyramid within a Madrid traffic circle.

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

A landscape decorated with enormous skull sculptures.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.