‘Bridge No. 3’

The architects of Central Park pose on Willowdell Arch in Central Park, New York. From left, treasurer Andrew Green, drainage engineer George Waring, landscape architect Calvert Vaux, gardener Ignaz Pilat, associate landscape architect Jacob Mould, and park superintendent Frederick Law Olmste, on September 23, 1862. (Photo by Victor Prevost/George Eastman Museum/Getty Images)