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

An uninhabited village that preserves and documents rural architecture and an endangered way of life.

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

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

A magnificent, long-abandoned castle built in the wake of the reconquest of Spain.

This species of wild goat stars in witchy legends and frolics among the park's eerie rock formations.

A breathtaking and biodiverse wilderness in the mountain setting of Ernest Hemingway's "For Whom the Bell Tolls."

These Bullet-scarred bunkers are haunting reminders of the Spanish Civil War.

This underground church is topped with a 500-foot cross that is seen by many as a beacon of fascist hubris.

A historic castle that served as a backdrop to part of an elaborate extraterrestrial hoax.

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

The mysterious large white cross visible from the runway is a memorial to a massacre during Spanish Civil War.

A subterranean relic of the Spanish Civil War hides below this picturesque park.

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

A towering monument in Spain has proven to be more labor-intensive than initially planned.

A unique exhibit lets blind people experience famous works of art and architecture with their hands.

Earth's rocky history has rarely glittered so brightly as it does in this Spanish museum.

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

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.

The little church's beautifully frescoed ceiling has earned it the nickname “the Sistine Chapel of Madrid.”

In the fictional world of Kcymaerxthaere, celestial wonders marked a portal to a powerful route of travel at this site in Madrid, Spain.

A vault of safe-deposit boxes in an old bank has been repurposed as a time capsule of Hispanic culture.

The earliest known map to show America, discovered by accident at a Paris bookshop.

This macabre masterpiece of a mural is one of Francisco Goya's "Black Paintings."