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

Abandoned tunnels dug for the once-thriving sea salt industry on the coast of southern Spain.

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

An unusual but excellent display created in the 1930s as propaganda against the Freemasons.

Religious dwelling in a Spanish volcano.

Despite its grandiose name, this enigmatic first-century void under the town is no cave, and it's possibly not a palace either.

An abandoned socialist utopia built in the late 19th century.

Mysterious face-like images that appeared within an Andalusian house are surrounded by legends of the paranormal.

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

The ruins of a bombed medieval village memorialize the destruction of the Spanish Civil War.

Strange masks and obscure costumes are housed in this old Madrid corrala.

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

A rare set of strings by famed instrument maker Antonio Stradivarius is on display in the Royal Palace.

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

A neighborhood park in the city of Cáceres hides what some believe are revolutionary examples of Neanderthal cave art.

"Satisfying" is a good way to describe these beautifully aligned rows of Spanish mills.

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

A small church ornamented with medieval erotic sculptures.

This generously endowed statue once stood guard outside a Roman home.

An accidental trick of light casts the perfect shadow of a pilgrim of the Camino de Santiago against the cathedral wall.

This underwater graveyard commemorates a group of murdered 16th-century missionaries.

These primitive rock paintings include a very beloved depiction of a woolly mammoth.

This 47-story "M" needed 20 years to be completed

The largest medieval water tank on the Iberian Peninsula is preserved beneath the Cáceres Museum.