Since its opening in 2005, the signature image of the Museum of the African Diaspora has been photographer Chester Higgins’s “The Girl from Ghana,” a three-story photomosaic covering the wall along the museum’s main…

Since its opening in 2005, the signature image of the Museum of the African Diaspora has been photographer Chester Higgins’s “The Girl from Ghana,” a three-story photomosaic covering the wall along the museum’s main…