Unidentified men in the interior of the 219-foot long hull of the world's largest airplane, Howard Hughes' flying boat, prior to initial water taxi tests to be conducted with Hughes at the controls, Nov. 2, 1947.
A view of the interior of Boulder Dam, as seen from a visitor viewpoint platform; a man leans against the railing, looking down at power generators below. Boulder Dam was officially renamed Hoover Dam in 1947.