August 25, 1923. The Navy airship ZR-1 in its hangar at Lakehurst Naval Air Station, New Jersey. View full size. George Grantham Bain Collection.

The airship ZR-1 leaving its hangar at Lakehurst Naval Air Station in New Jersey in 1923. View full size. George Grantham Bain Collection.

Wagons at the Center Market, Washington, D.C., circa 1890. View full size.

November 1942. "An American pineapple, of the kind the Axis finds hard to digest, is ready to leave the hand of an infantryman in training at Fort Belvoir, Va." View full size. 4x5 Kodachrome transparency by Alfred Palmer.

On the tipple at the Bessie Mine, Sloss-Sheffield Steel & Iron Co. These young boys work around and on these coal cars, loaded and empty, while they are running at full speed. It is dangerous. One of these boys said, "Ain't hardly a day goes by that someone don't get pinched or hurt." "I got my leg jammed a while ago and was laid up a week." Location: Bessie Mine, Alabama. Photograph by Lewis Wickes Hine, 1910. View full size

The International Ballooning Contest at Aero Park, Chicago, July 4th, 1908. View full size.

Another view of Fitz Guerin's sailing sisters from 1902. View full size.

July 4, 1922. Takoma Park neighborhood of Maryland and the District of Columbia. View full size. National Photo Company. Happy Fourth of July from Shorpy! Is there a Takoma Parker out there who knows where this house is?

Engineers' color guard at Fort Belvoir, Virginia. March 1943. View full size. 4x5 Kodachrome transparency, photographer unknown.

August 1942. Children stage a "patriotic demonstration" at the Beecher Street School in Southington, Conn. View full size. Kodachrome by Fenno Jacobs.

August 1942. "Ella Watson, a charwoman employed by the government in Washington, D.C." Photograph by Gordon Parks, who took dozens of pictures of Mrs. Watson in one of his first assignments for the FSA. View full size.

May 1942. Emily Schwak, Queen of the May at the Beecher Street School in Southington, Connecticut, where the children put on a patriotic display. View full size. 4x5 Kodachrome transparency by Fenno Jacobs.

Lincoln, Nebraska. 1942. View full size. 35mm Kodachrome transparency by John Vachon. Farm Security Administration/Office of War Information.

1951. Lisa Fonssagrives at Victoria Station in London. Photograph by Toni Frissell for Harper's Bazaar. View full size.

A poster for the 1939 July 4th celebration at the DuPage County Centennial in Downers Grove, Illinois. View full size