What is a close suburb to Washington DC?

Arlington, Virginia is a close suburb to Washington DC. It is located just across the Potomac River from the nation's capital, and is home to many government employees, military personnel, and other professionals who work in the DC area. Arlington is known for its beautiful parks, historic homes, and vibrant nightlife scene. It is also home to several major tourist attractions, including the Arlington National Cemetery, the Pentagon, and the Iwo Jima Memorial.