A stately palace has been converted into the world's largest cannabis museum.

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

These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.

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

A once grand hotel now sits eerily abandoned in the Catalan countryside outside Barcelona.

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

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

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

This cemetery features modernist statues as strange as its name.

This Funeral Hearse Museum represents the finest in cadaver transportation.

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

This imposing modern citadel started out as a home renovation project.

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

A science fiction-inspired apartment building designed by a famous Spanish architect.

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.

Remote ruins of a 2,400-year-old Iberian settlement.

This magical space partly designed by Antoni Gaudi is one of the best examples of romantic gardening in the Mediterranean.

Long tunnels run under the ancient chariot racing circuit to the tower.

A modernist church in an ancient village.

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

Archaeological site of Iberian people ruins.

Replica of Seville, Spains famous Giralda, a former minaret converted into a bell tower.