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

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

The ruins of an ancient stadium that hosted gripping chariot and horse races.

The hidden ruins of an old hydroelectric plant reclaimed by nature.

This enchanting hamlet carved into the rock looks like something straight out of Tolkien's Rivendell.

A celebration of solstice followed by a fiery purging of evils.

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

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

This embalmed man is one of the best preserved mummies from the Canary Islands.

Part of the medieval watchtower is displayed in an otherwise ordinary parking garage.

This line of 12 tower mills described in the story of Don Quixote is among the most iconic landscapes in Spain.

A contemporary art installation housed within a Gothic cathedral.

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

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

The Gaudí-inspired building that was the start of Terrassenc modernism.

This imposing modern citadel started out as a home renovation project.

Volcanic rocks ground down into sand make this Spanish beach as black as night.

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

Seaside ruins of a settlement that date back to the first century B.C.

Remarkably intact Roman stone fortifications have encircled this Spanish city for centuries.

Now a pile of ruins and rubble, this was a lovely mountain town as recently as 1960.

This remarkable prehistoric town is full of watchtowers and houses that have withstood thousands of years.

This lucky bronze frog was gifted to Madrid by a casino.

This religious complex carved into a cliff is steeped in legends of miraculous stags and the Holy Grail.