Rene Magritte: The Empire Of Lights, Unfinished (1967)

René François Ghislain Magritte was a Belgian surrealist artist. He is best known for his witty and thought-provoking images. The artist continued to work until the year of his death in 1967, and his final unfinished piece is called The Empire of Lights. The painting had been commissioned by a German collector from Cologne, but he never received the picture, because it remained on the easel of the painter's house in Brussels until the death of his wife Georgette in 1986.