The Walter E. Washington Convention Center is a 2,300,000-square-foot (210,000 m²) convention center located in Washington, D.C., USA, owned and operated by the city's convention arm, Events DC. Designed by the Atlanta-based architecture firm Thompson, Ventulett, Stainback & Associates, the convention center is located in a superblock bounded by Mount Vernon Square and 7th, 9th and N streets, N.W. It is served by the Mount Vernon Square station on the Yellow and Green lines of the Washington Metro.