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Pablo Picasso (1881–1973), Guernica, 1937. Oil on canvas, 137.4 inches by 305.5 inches. Museo Nacional Centro de Arte Reina Sofia, Madrid, Spain
Created in response to the bombing of Guernica, Spain by German and Italian forces during the Spanish Civil War, that resulted in nearly one thousand civilian deaths.

Bridgeman Images/(c) 2015 Estate of Pablo Picasso/Artists Rights Society (ARS), New York