Anacostia is a Washington Metro station in Washington, D.C. on the Green Line. The station is located in the Anacostia neighborhood of Southeast Washington, with entrances at Shannon Place and Howard Road near Martin Luther King, Jr. Avenue SE (a major street serving the southeastern portion of the city). The station serves as a hub for Metrobus routes in Southeast, Washington, D.C. and Prince George's County, Maryland.Station layoutThe architecture at Anacostia is unusual. Due to cost considerations and the station's shallow depth, the usual arched ceiling was abandoned in favor of flat concrete walls and a ceiling of small barrel vaults (oriented perpendicular to the tracks) similar to the upper coffers in the six-coffer arch station design. The station is an underground stop because the distance between the Anacostia River tunnels and the station is too short to have permitted an above-ground stop. The station has entrances on both sides of DC-295/I-295 (Anacostia Freeway), which necessitated the construction of a slightly longer platform than would be necessary to accommodate trains. In addition, there are no pylons at platform-level at Anacostia.