The first successful permanent photograph! Joseph Nicéphore Niépce: View from the Window at Le Gras, in Saint-Loup-de-Varennes. (1826) - Source: Wikimedia Commons
William Henry Jackson on Glacier Point in Yosemite National Park (c.1900) - Source: History Colorado
Lewis W. Hine: Children of the Loom. Bibb Mill No. 1, Macon, Georgia. (1909) - Source: Wikimedia Commons
Ansel Adams: The Tetons and the Snake River (1942) Grand Teton National Park, Wyoming. - Source: Wikimedia Commons
Ansel Adams: White House Ruin, Canyon de Chelly National Monument, Arizona. (1942) - Source: Wikimedia Commons
- Bill Beall: Boy and Cop in Chinatown (1957) - Pulitzer Prize-winning photo of 2-year-old Allen Weaver listening to policeman Maurice Cullinane about the dangers of firecrackers after youth had stepped off curb to get closer look at Chinese festival.