A series of recreated fortifications mark George Orwell's path through the Spanish Civil War.

A small church ornamented with medieval erotic sculptures.

A medieval village holds a very modern hotel.

The quirky - and private - constructions of a secluded artist depict the house of God.

These magnificently sculpted tombs represent Spain's own legendary version of "Romeo and Juliet."

This multi-level, aqueduct-footbridge hybrid is one of the greatest works of the Spanish Renaissance.

During an annual Catholic feast in this tiny Spanish village, men dressed as devils leap over rows of babies to cleanse them of sin.

The most elaborate of 12 medieval arched doorways to the old city of Burgos.

This ancient tunnel is one of the most important examples of Roman hydraulic engineering in Spain.

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

This awesome Spanish castle is so fantastical it was actually used on Game of Thrones.

An abandoned airport in the middle of nowhere.

A network of hundreds of interconnected wineries in caves hides under the town center.

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

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

One of the most important Celtic-Roman archaeological sites in Spain.

Whimsical sculptures and caves chiseled by nature over the millennia.

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

A curious memento mori hangs in the magnificent Cathedral of Segovia.

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

The fragmented remains of a massive public bath connected to the city's water supply.

The ruins of an ancient stadium that hosted gripping chariot and horse races.

This postmodern apartment block was designed to be a vertical neighborhood.

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