-turner - The Decline of the Carthaginian Empire. Before 1818. Oil on canvas. 67 x 94 in. (170.2 x 238.8 cm). Tate Gallery, London, UK -turner - The Decline of the Carthaginian Empire. Before 1818. Oil on canvas. 67 x 94 in. (170.2 x 238.8 cm). Tate Gallery, London, UK