A kitten aboard a floating Victoria water lily pad in the Philippines, 1935.Photograph by Alfred T. Palmer, National Geographic Creative

A kitten aboard a floating Victoria water lily pad in the Philippines, 1935.Photograph by Alfred T. Palmer, National Geographic Creative

Children play in pool they have dug out of the sand on the beach in Le Havre, France, 1936.Photograph by W. Robert Moore, National Geographic Creative

Children play in pool they have dug out of the sand on the beach in Le Havre, France, 1936.Photograph by W. Robert Moore, National Geographic Creative

Women rest at the Parthenon whose damaged structure is under repair, December 1930.Photograph by Maynard Owen Williams, National Geographic

Women rest at the Parthenon whose damaged structure is under repair, December 1930.Photograph by Maynard Owen Williams, National Geographic

Girls standing in water holding bunches of American Lotus, Amana, Iowa, November 1938.Photograph by J. Baylor Roberts, National Geographic

Girls standing in water holding bunches of American Lotus, Amana, Iowa, November 1938.Photograph by J. Baylor Roberts, National Geographic

People play in and around the water blocked off at Le Havre Beach in Normandy, France, 1936.Photograph by W. Robert Moore, National Geographic

People play in and around the water blocked off at Le Havre Beach in Normandy, France, 1936.Photograph by W. Robert Moore, National Geographic

Summer strollers watch a colorful water fountain display at night, Chicago, May 1931.Photograph by Clifton R. Adams, National Geographic

Summer strollers watch a colorful water fountain display at night, Chicago, May 1931.Photograph by Clifton R. Adams, National Geographic

A woman sits selling feather fans as souvenirs to visitors in Siam, May 1934.Photograph by Jules Gervais Courtellemont, National Geographic

A woman sits selling feather fans as souvenirs to visitors in Siam, May 1934.Photograph by Jules Gervais Courtellemont, National Geographic

Two girls sit in front of an apple display in the shape of a turkey in West Virginia, 1939.Photograph by B. Anthony Stewart, National Geographic

Two girls sit in front of an apple display in the shape of a turkey in West Virginia, 1939.
Photograph by B. Anthony Stewart, National Geographic

Seven siblings sit on a wooden fence in Quebec, Canada, May 1939.Photograph by Howell Walker, National Geographic

Seven siblings sit on a wooden fence in Quebec, Canada, May 1939.Photograph by Howell Walker, National Geographic

Young women look out on Kalapana Black Sand Beach in Hawaii. The beach gets its black color from volanic lava, November 1937.Photograph by Richard Hewitt Stewart, National Geographic

Young women look out on Kalapana Black Sand Beach in Hawaii. The beach gets its black color from volanic lava, November 1937.Photograph by Richard Hewitt Stewart, National Geographic

A group of dancing Swazi maidens in Swaziland, South Africa, October 1930.Photograph by Melville Chater, National Geographic

A group of dancing Swazi maidens in Swaziland, South Africa, October 1930.Photograph by Melville Chater, National Geographic

A New York Central Mercury train is dwarfed by Cleveland’s Union Station, November 1936.Photograph by J. Baylor Roberts, National Geographic

A New York Central Mercury train is dwarfed by Cleveland’s Union Station, November 1936.Photograph by J. Baylor Roberts, National Geographic

This mare won a blue ribbon at a horse show in Wateloo, Iowa, August 1939.Photograph by J. Baylor Roberts, National Geographic

This mare won a blue ribbon at a horse show in Wateloo, Iowa, August 1939.Photograph by J. Baylor Roberts, National Geographic

A mysterious, unpublished shot from California in the 1930’s. Learn how this photograph was discovered on Proof. Photograph by Clifton R. Adams, National Geographic

A mysterious, unpublished shot from California in the 1930’s. Learn how this photograph was discovered on Proof. Photograph by Clifton R. Adams, National Geographic

The San Francisco-Oakland Bay Bridge from Yerba Buena Island in 1936.Photograph by the California State Department of Public Works

The San Francisco-Oakland Bay Bridge from Yerba Buena Island in 1936.Photograph by the California State Department of Public Works