Eccentric sculpture garden brings Basque mythology to life.

An enchanting landscape of ancient sandstone structures eroded into otherworldly shapes.

A house covered entirely with shells.

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

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

The prolific artwork of a self-taught sculptor.

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

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

Archaeological site of Iberian people ruins.

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

Rumors and legends of secret Nazi activities surround this eerily remote island mansion.

During an annual Catholic feast in this tiny Spanish village, men dressed as devils leap over rows of babies to cleanse them of sin.

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

This amended headstone marks the grave of a participant in one of the most successful military deceptions of all time.

A somewhat mysterious biomedical museum housed inside a Spanish university.

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

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

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

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

Hundreds of caves once used to store grains and animal feed.

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

This abandoned, turn-of-the-century astronomy hub is now the subject of more photographs than it ever took.

The deserted remains of a luxury hotel turned hospital ward.

This mountaintop observatory is home to one of the world's largest reflective telescopes.