of Congress is the largest library complex in the world with a collection of more than 147 million books, manuscripts, and other materials. The United States Supreme Court is located immediately north of the Library of Congress. The United States Supreme Court Building was completed in 1935; before then, the court held sessions in the Old Senate Chamber of the Capitol. Chinatown, located just north of the National Mall, houses Capital One Arena, which serves as home arena to the Washington Capitals of the National Hockey League and the Washington Wizzards of the National Basketball Association and is the city's primary indoor entertainment arena. Chinatown includes several Chinese restaurants. Friendship Archway is one of the largest Chinese ceremonial archways outside of China. The archway bears the Chinese characters for Chinatown below its roof. The Southwest Waterfront along the Potomac River has been redeveloped in recent years and now serves as a popular cultural center. The Wharf, as it is called, contains the city's historic Maine Avenue Fish Market. This is the oldest fish market currently in operation in the entire United States. The Wharf also has many hotels, residential buildings, restaurants, shops, parks, piers, docks and marinas, and live music venues. Several other landmarks are located in neighboring Northern Virginia. Among these are Arlington National Cemetery, including the Tomb of the Unknown Soldier, The Pentagon, the 9/11 Pentagon Memorial, the United States Air Force Memorial, Old Town Alexandria, and Mount Vernon, the former home of George Washington. National Harbor in Prince George's County, Maryland and its Capital Wheel, a ferris wheel providing riders with views of the D.C. area, are also notable landmarks. The National Spelling Bee is held annually since 2011 at the Gaylord National Resort & Convention Center at National Harbor. Parks There are also numerous parks, gardens, squares, and circles that have become notable landmarks, such as Rock Creek Park. Rock Creek Park, located in Northwest D.C., is the largest park in the city and is administered by the National Park Service. Located on the northern side of the White House, Lafayette Square is a historic public square. Named after the Marquis de Lafayette, a Frenchman who served as a commander during the American Revolutionary War, the square has been the site of many protests, marches, and speeches over the decades. The houses bordering the square have served as the home to many notable figures, such as