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
Arlington, Kentucky on the name "Arlington" after Arlington Heights, Virginia, the hometown of a railroad official. The new city was incorporated in 1876. When Carlisle County was created in 1886, Arlington was initially selected as the seat of the new county. The nearby city of Bardwell challenged this, however, noting its more central location within the county. County officials agreed, and moved the seat to Bardwell shortly afterward. Arlington is located in southern Carlisle County at . U.S. Route 51 and Kentucky Route 80 intersect in the city. US 51 leads north to Bardwell, Kentucky, and to Cairo, Illinois, while leading south