April 25, 1930. New York. "Choreographer Sarah Mildred Strauss and pupils." Cue "Rhapsody in Gray." Nitrate negative by Arnold Genthe. View full size.

March 1924. "Tenement homework. Pictures taken in connection with invest­igation (see report TE-NY-39)." Photo by Lewis Wickes Hine. View full size.

Pittsburgh circa 1905. "Monongahela Incline up Mount Washington." A funicular railway that ran until 1935. The freight incline is on the left. 8x10 inch dry plate glass negative, Detroit Publishing Company. View full size.

Nov. 25, 1938. For those of us who can't get enough of the white stuff: "Washington was digging itself out of 8 inches of snow today, the first snowstorm of winter. The scene at the White House." Harris & Ewing photo. View full size.

March 9, 1925. Washington, D.C. "Among the first to visit the 1925 Amaryllis Show at the government greenhouses on B Street was the new Secretary of Agriculture William M. Jardine." Harris & Ewing Collection glass negative. View full size.

Summer 1935. "Washington, D.C., alley dwelling. The clutter of filth, debris and tin cans all have highly utilitarian purposes. Many of the houses are without gas, water, or electric connections." Note the Capitol dome at the top of the frame. Our second look at this abode. Harris & Ewing glass negative. View full size.

1950s. Wellington, New Zealand. "Interior of Sunshine Milk Bar lined with booths, photographed by K.E. Niven & Co." Large-format acetate negative, K.E. Niven & Co. Collection, Alexander Turnbull Library. View full size.