This fantastic sculpture of an early model helicopter celebrates the local toy industry.

Not far from Madrid, a set of perfectly preserved trenches date back to the Spanish Civil War.

The blowhole bursts spectacularly right next to the buildings in a medieval seaside town.

The world's most elegant power lines.

A 12th century church completely covered in shells.

A somewhat mysterious biomedical museum housed inside a Spanish university.

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

An old wool-washing house filled with Fluxus contemporary art.

A fiery-red region of scooped out land still largely untouched by civilization, tourists or otherwise.

An independent naturist colony amidst 1000-year-old ruins.

A reproduction of the famous prehistoric cave paintings is hidden underground at the National Archaeological Museum.

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

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

A well-restored ancient archaeology site gives a real feel for life during the Roman age.

Madrid's last horchata kiosk is a blue-and-white beacon of refreshment.

A five-square-mile slice of Spain on the Mediterranean coast of North Africa.

This beautifully verdant lagoon is tucked below a massive volcano in a crater atop a black pebble beach.

A micro-communist utopia in Spain with no police, no mortgages and full employment.

Among the oldest structures in Madrid, these Moorish walls once guarded the medieval city of Mayrit.

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

A Spanish artist builds his own castle.

Holy Grotto of Montserrat Monastery holds one of Europe's mysterious black Madonnas.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

One of the most spectacular bridges in Spain spans a narrow chasm that divides the city of Ronda.