Featured exhibition
GM's Powerama: The forgotten 1955 Chicago spectacle where General Motors spent $82 million to make 35-ton bulldozers dance the mambo, lose to elephants, and showcase a bizarre, futuristic vision of American progress.
From the archive
Sometime in the 1950s a photographer stood in a quarry or canyon and pointed at a cliff face to document the vertical geometry of sedimentary rock—the kind of s
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