President Obama speaks during the dedication ceremony for the Smithsonian National Museum of African American History and Culture on the National Mall in Washington.
Pablo Martinez Monsivais/AP
"Market Symphony" is a new audio installation at the National Museum of African Art in Washington, D.C. The exhibition layers sound from a market in Lagos, Nigeria. The speakers are installed on enamelware trays which are often used in markets.
Courtesy of the National Museum of African Art