Reginald F. Lewis Museum of Maryland African American History & Culture
830 East Pratt Street, Baltimore
443-263-1800 http://www.africanamericanculture.org/
Enoch Pratt Library African American Department
400 Cathedral Street, Baltimore
410-396-5430 http://www.epfl.net/slrc/afam/
The National Great Blacks In Wax Museum
1601-1603 East North Avenue, Baltimore
410-563-3404
http://www.ngbiwm.com/
Your local library always a good starting point.