Marcel Duchamp, Fountain, 1917. Replica 1964, Marcel Duchamp. Porcelain. Tate Gallery London.
© Marcel Duchamp, 1917/ADAGP. Licensed by VISCOPY 2010.
Francisco Goya, The 3rd of May 1808 in Madrid: The Executions on Principe Pio Hill, 1814. Oil on canvas. 268 x 347cm. Collection Museo Nacional del Prado. Image courtesy Museo Nacional del Prado.