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

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

The yawning maw of this pagan visage is said to bite off the hands of liars.

This fantastical faceless sculpture in Spain is on the grandest scale.

This unique prehistoric funerary monument is notable for its distinctive boat-shaped design and exceptional preservation, offering a fascinating glimpse into the island's ancient burial practices.

A massive line that stretches across the floor of Bologna’s largest church was created by a 17th-century scientist to measure the movements of the Sun.

This 11th-century fortress is now the seat of Aragon’s state legislature.

This whimsical home made entirely from clay is basically a giant piece of pottery.

A statue of a boy looks up at where the famous rival to the Leaning Tower of Pisa once stood.

The Museum of the Forum of Caesar Augusta showcases the city's ancient Roman sewage system.

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

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

The world's largest sundial can cast a shadow more than 1,600 feet long.

Europe's largest river aquarium features freshwater species from around the world.

The engineer of the Imperial Canal of Aragon installed this fountain to show skeptics he had achieved his aim.

A lush indoor jungle fills this bustling Madrid transportation hub.

Pilgrimage site for star-crossed lovers.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

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

An oversized, oddly designed pedestrian overpass has drawn comparisons to a commode for pachyderms.

The Cathedral of Salamanca has a number of unusual carvings but none so surprising as a modern astronaut.

Once used to calculate the various levels around the country.

The tiny Spanish village that long refused to change its outrageously anti-Semitic name.