WASHINGTON, DC.- A free summer shuttle to transport visitors between the National Mall and the Smithsonian’s Anacostia Community Museum offers weekend service through Sept. 20. A door-prize promotion invites Mall visitors to ride Shuttle Anacostia to “Spend a Day at the Museum” in Anacostia and become eligible to win two free tickets to the movie “Night at the Museum: Battle of the Smithsonian” for use on that weekend.

Shuttle Anacostia picks up riders on Saturdays and Sundays from the Smithsonian Castle, the National Air and Space Museum and the Anacostia Metro Station beginning at 10 a.m. Riders can also visit the Frederick Douglass Historic Site, which is included as a stop on the shuttle as it loops back to the Castle.

Interested visitors are directed to shuttle stops marked by promotional signage featuring mannequins and displays from the exhibitions currently on view at the museum, “Jubilee: African American Celebration” and “Separate and Unequaled: Black Baseball in the District of Columbia.”

One door prize will be awarded each weekend to a lucky shuttle rider who will receive an admission voucher to be exchanged at the box office for two tickets to a showing that weekend of “Night at the Museum” at the National Air and Space Museum’s Lockheed Imax theater. For more information on Shuttle Anacostia, the promotion and museum exhibitions and programs, visit http://anacostia.si.edu.