Bob Adelman (1930–2016), People Wall, World's Fair, New York, 1965, gelatin silver print. The Morgan Library & Museum, Purchased as the gift of Nancy and Burton Staniar, 2015.131. © Bob Adelman Estate

Eleanor, Chicago, 1949 © The Estate of Harry Callahan; Courtesy Pace/MacGill Gallery, New York

"Laboratory of the Future," 1935. © 2014 Man Ray Trust/Artists Rights Society (ARS), New York/ADAGP, Paris/Courtesy of the MoMA