Smithsonian Institution Smithsonian Institution

Quilts from the Bill and Camille Cosby collection hang at the Smithsonian's National Museum of African Art in Washington, D.C., in this Nov. 6, 2014, photo. Evan Vucci/AP hide caption

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Evan Vucci/AP

Oprah Winfrey gave $12 million Tuesday to help build the Smithsonian's new National Museum of African American History and Culture, seen here in a scale model (lower center). The facility is expected to open in 2015. Allison Keyes/NPR hide caption

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Allison Keyes/NPR