A temple to modernity, tucked away amid Barcelona's more well known museums.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

Houses are tucked between, on, and underneath giant boulders.

Numerous sculptures set along hiking trails symbolize and idealize the relationship between man and nature.

This awesome Spanish castle is so fantastical it was actually used on Game of Thrones.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

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

Wonderland replication in progress by one persistent man.

An enchanting monastery in the Spanish countryside appears lifted from a fantasy tale.

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

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

This semi-secret storybook hedge maze is also the oldest garden in the city.

A beautiful but toxic fountain of mercury.

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.

One of the most photographed buildings in a city known for its Modernista architecture is an abandoned squat.

Giant granite sculptures representing family on the northern coast of Spain.

An architect transformed this abandoned cement factory into his castle-like workshop.

The studio of Catalonia's most famous theatrical designer remains exactly as he left it.

Of course Salvador Dalí lived in a castle...

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

The effect of this ancient form of image projection situated atop an 11th century Moorish palace is thrilling.

A Spanish town built into the cliffs.