Winged Figures of the Republic (Hoover Dam)

Two of these bronze figures sit at Hoover Dam on the border of Arizona and Nevada in the United States. The 9 meter (30') tall sculptures were designed by Oskar Hansen as part of an open competition. They're certainly a product of their time: modernism and art deco are prominently embodied in these — and all — aspects of Hoover Dam.

For more information, the US Bureau of Reclamation website contains a PDF document describing the sculptures and monuments at Hoover Dam, as well as commentary by the artist.