[Painting of Manfred Freiherr von Richthofen in Richthofen family home, Schweidnitz, Germany]

[Jackson Pollock kneeling on floor, working on a painting in his studio, Long Island]

[Picasso in front of his painting "Guernica" at the Spanish Pavilion of the World's Fair, Paris]

Wassily Kandinsky's painting cabinet with his 1935 Two Green Dots, Paris

[Yayoi Kusama painting dots on woman during her Body Festival, New York]

[Yayoi Kusama painting dots on woman during her Body Festival, New York]

[Woman inventorying painting with two Republican soldiers, convent of Las Descalzas Reales, Madrid]

[Yayoi Kusama painting dots on woman during her Body Festival, New York]