Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

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

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

An ancient Egyptian temple in the middle of Madrid, Spain.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

A lush indoor jungle fills this bustling Madrid transportation hub.

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

The facade of this 16th-century building is decorated with carvings of 300 seashells.

The tallest tower in Cáceres's Old Town.

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

The oldest Roman lighthouse still in use.

Natural stone arches form a walkable "cathedral" at low tide, then disappear entirely when the water returns.

A historic Christian shrine nestled within a spectacular natural cave.

This beautiful spit of land was once the summer playground of the king of Spain.

Giant topiary dog once played a role in a terrorist bomb plot.

Two towns are linked by an engineering marvel masquerading as a boring suspension bridge.

The first museum in Europe dedicated to the art of origami.

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

Stunning Roman aqueduct used for 1900 years and still standing.

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

For centuries, the largest Arab bathhouse in Spain was hidden under a palace.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.