Commonly acknowledged as the only public monument to the Devil himself.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

A breathtaking canyon offers stunning views and frightful pathways through an ecological paradise.

Considered the birthplace of the Copper Age and Bronze Age, the river is tinted red from 5,000 years of mining.

Village situated on a narrow volcanic escarpment.

A landscape decorated with enormous skull sculptures.

At the foot of a waterfall lies a peaceful swimming lagoon and evidence of over 60,000 years of human habitation.

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

A Spanish town built into the cliffs.

Natural stone arches form a walkable "cathedral" at low tide, then disappear entirely when the water returns.

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

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

Wonderland replication in progress by one persistent man.

A museum dedicated to the Spanish occult in a town that was terrorized by the Inquisition.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Week-long block party becomes a competition for the best decorated street.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

This cemetery features modernist statues as strange as its name.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.