These caves secretly held national treasures during World War II.

The former 1920s mansion of a prominent Catalan developer was used as the Soviet Embassy during the Spanish Civil War, and there is still a bunker below the garden.

Turntable anonymously received orphans, alms, and groceries.

A once-secret library of Freemason history in Catalonia.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

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

The ruins of a bombed medieval village memorialize the destruction of the Spanish Civil War.

This memorial, built by fascist dictator General Franco in 1960, has been repurposed by the people of Catalonia.

A botanical garden full of thought-provoking contemporary sculptures.

The blowhole bursts spectacularly right next to the buildings in a medieval seaside town.

These ruins are all that remain of Tortosa’s lost coal gas manufacturing industry.

This Canadian hunting lodge is a long way from home.