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

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

Translating as "The Jump of the Girlfriend," this stunning waterfall has a tragic legend behind it.

The streets of a sleepy Spanish town proudly exhibit some of the world's finest graffiti.

An isolated village literally built into the crevices and rock formations of a mountain.

This Canadian hunting lodge is a long way from home.

These ruins are all that remain of Tortosa’s lost coal gas manufacturing industry.

This memorial, built by fascist dictator General Franco in 1960, has been repurposed by the people of Catalonia.

This amazing piece of modern art honors the hundreds of fishermen killed during Cambrils' "year of misfortunes."

Hidden well off the beaten path in Catalonia is this crumbling medieval castle that is slowly being covered in graffiti.

A modernist church in an ancient village.

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

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

Stunning Roman aqueduct used for 1900 years and still standing.

The abandoned ruins of a beautiful medieval castle just outside Barcelona.

This whimsical winery by Antoni Gaudí looks ripped from the pages of a fairytale.

These striking ruins of a castle resemble a ship's stern.

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

A Spanish forest is filled with mysterious stone carvings.

A gravity-defying "devil's bridge" that has a surprising architectural feature for its stability.

An ornate tower shows off a local artist's architectural flair.

Tower that was a frequent stop on the travels of King James I.

This medieval fortification has weathered the centuries better than any other structure from its era.

This ancient Spanish castle sits high upon a hilltop.