Living towers made of people that are now recognized by UNESCO.

The prolific artwork of a self-taught sculptor.

A landscape decorated with enormous skull sculptures.

Of course Salvador Dalí lived in a castle...

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

An elaborately decorated house sits on an otherwise quiet street.

Mysterious Spanish catacombs of unknown origins.

Open air sculptures by an eccentric and loin-clothed hermit.

Teeny tiny hotel on the coast of the Canary Islands.

A local artist created this giant rippling wave.

Eccentric sculpture garden brings Basque mythology to life.

Super Robot anime statue guards a forgotten suburban development in Tarragona.

Salaguti's live-in museum: a fortress against criticism and consumer art.

Cliffside houses provide a spectacular view from their perch above the valley.

The chefs at El Diablo use heat generated by an active volcano to cook the food.

Cursed swimming pool left abandoned is now a favorite of filmmakers and ghost hunters.

An impressive home made of stone, carved more than a century ago.

Famed architect Antoni Gaudi built this generous thank you gift to a friendly host who housed him during a job.

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

Two large posteriors in one giant statue.

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

Partially collapsed lava tube and cave system complete with concert hall, underground pond, and unique albino crabs.

An arresting arch punched straight through a mountain provides one of the most scenic spots, and challenging climbs, on the planet.

Three bridges and one giant canyon make up this fantastic Spanish settlement.