Arlington County, the smallest county in the United States, spans just 26 square miles.  Located directly across the Potomac River from Washington, DC, Arlington is the home of some of the nation's most notable landmarks including The Pentagon, Arlington National Cemetary, Roosevelt Island and the headquarters for the US Department of Defense.

Arlington County is divided among smaller submarkets:
   Ballston, Arlington's hub of science and technology
   Clarendon, the heart of Arlington's nightlife and dining scene
   Columbia Pike, Arlington's original Main Street
   Courthouse, Arlington's community space
   Crystal City, Arlington's business core 
   Pentagon City, Arlington's shopping mecca
   Rossyln, Washington DC's skyline
   Shirlington, Arlington's arts and entertainment district
   and Virginia Square, Arlington's educational and cultural center.

Residents and vistors of Arlington County can easy access its landmarks, parks, shops, restaurants, and cultural venues via the Metrorail line.