WARNING!!

Photo by George Pruteanu.

Henri Matisse drawing with a bamboo pole tipped with charcoal, August 1948. From the collection of the International Center of Photography, New York. Photo by Robert Capa.

Christy Turlington for GQ, April 1989. Photo by Herb Ritts.

Muhammad Ali training underwater, photo by Flip Schulke, 1960.

Artist Salvador Dali seated in a bathtub at the Ambassador Hotel in Los Angeles, Calif., 1944.