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The National Museum of African American History and Culture, Adjaye Associates
The exterior pattern was inspired by the ornate ironwork of the American South, much of which was created by enslaved and free African Americans.
The Museum's distinctive tiered profile was inspired by a traditional West African wooden sculpture that bears a corona.
The proportions of the panels were developed with the Washington Monument stones as a reference and the building's corona profile closely matches the 17-degree angle of the monument's capstone.
The intriguing interplay of light and dark in the patterned aluminium panels is further enhanced by a narrow vertical shadow cast by the nearby Washington Memorial.