Dummy pilot and seat soar, as engineers test a catapult escape system in Arizona, March 1963.Photograph by Robert Sisson, National Geographic
A man and his dog on the Overhanging Rock in Yosemite National Park, May 1924.Photograph by Educational-Bruce Photograph
Thermal springs warm winter bathers in British Columbia, 1966.
Photograph by James L. Stanfield, National Geographic
Women harvest wheat with sickles then bind it by hand in a field in 1956.Photograph by Franc and Jean Shore, National Geographic