Mandarin Oriental Washington, D.C. is a luxury Postmodernist-style hotel located at 1330 Maryland Ave SW, Washington, D.C., in the United States. Completed in 2004, the hotel is near the National Mall and Smithsonian Institution museums, and overlooks the Tidal Basin. The hotel contains two restaurants, one of which closed permanently on December 6, 2014. Since its opening, the Mandarin Oriental Washington, D.C., has been AAA-rated four diamonds and Forbes Travel Guide rated four stars.