This enormous censer uses a pulley system installed over 400 years ago.

This influential Renaissance-era library was once the haunt of kings and monks.

This lake-bound geographical marker sits at the point where three European countries intersect.

A cluster of granite granaries perched on stilts.

A pair of gigantic baby heads greet passengers at Atocha Station.

An old, deep well, connected with a miraculous, divine rescue and the patron saint of Madrid.

The remains of this misplaced church were moved here stone by stone.

The abandoned club hides in the hills of Ibiza.

Head to the mountains to catch a glimpse of Spain's endangered subspecies of brown bear.

The surviving remnants of a destroyed medieval church now stand in a public park.

A controversial art piece that harkens back to local folklore.

According to tradition, King Phillip II supervised construction of the seat of his empire from this seat carved into rock.

Replicas of fossils unearthed during renovation work reveal how this area would have looked millions of years ago.

See replicas of Europe's most famous cave paintings and even some of the animals that feature in the art.

Originally used to sell brandy, the bull-shaped billboard became an iconic symbol of Spain.

These three pillboxes still remain as a witness of the Spanish Civil War in a park of Madrid.

Two 2,500-year-old Phoenician boats found on the coast of Spain, giving incredible insight into the ancient maritime traders.

Down this yellow brick road, visitors are treated to toadstool houses and massive mushroom sculptures.

This enigmatic artifact is a rare depiction of an ancient Iberian noblewoman.

A hidden medieval crypt where a famous legend says the devil used to teach black magic.

This magnificent castle grew from a small Moorish fortress, and reportedly inspired two iconic Disney castles.

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

This Arab fortress was once the largest citadel in Western Europe.

Living towers made of people that are now recognized by UNESCO.