“It was torture with a creative flair — build tiny cells that kept prisoners from sleeping, sitting or pacing, and decorate the walls with mind-bending art. These chambers operated during the Spanish Civil War of 1936-39, and were the work of Communists fighting for the government side as it battled troops under fascist Gen. Francisco Franco. Their existence is a bizarre, little-known footnote to the conflict and is now the focus of historians and artists. Researchers say the Soviet-inspired cells were the size of a walk-in closet, with terra-cotta bricks sticking up from the floor at sharp angles. A cot and a seat attached to the walls teased prisoners with the lure of rest, but tilted so far downward that they were useless.”