Crystal City, Arlington, Virginia Crystal City, Arlington, Virginia Crystal City is an urban neighborhood in the southeastern corner of Arlington County, Virginia, south of downtown Washington, D.C. Due to its extensive integration of office buildings and residential high-rise buildings using underground corridors, travel between stores, offices, and residences is possible without going above ground; thus, a large part of Crystal City is an underground city. Crystal City includes offices of numerous defense contractors, the United States Department of Labor, the United States Marshals Service and many satellite offices for The Pentagon. It is also the location of Ronald Reagan Washington National Airport. Crystal City
United States Post Office (Arlington, Virginia) United States Post Office (Arlington, Virginia) US Post Office-Arlington is a historic post office building located in the Clarendon neighborhood of Arlington, Virginia. It was designed and built in 1937, and is one of a number of post offices designed by the Office of the Supervising Architect of the Treasury Department under Louis A. Simon. The building is a one-story, pentagonal shaped brick building in the Georgian Revival style. Atop the entrance portico is a dome that rises above the buildings flat roof and is supported by four fluted limestone piers. The interior features murals by Auriel Bessemer picturing Indians