Georgetown is a historic neighborhood and commercial district of Washington, D.C., in Northwest D.C., situated along the Potomac River. The primary commercial corridors of Georgetown are the intersection of Wisconsin Avenue and M Street, which contain high-end shops, bars, restaurants, and the Georgetown Park enclosed shopping mall. The Washington Harbour waterfront restaurants are located to the south on K Street, between 30th and 31st Streets. Georgetown is home to the main campus of Georgetown University and numerous other landmarks, such as the Volta Bureau and the Old Stone House, the oldest house in Washington. The embassies of Cameroon, France, Iceland, Liechtenstein, Mongolia, Sweden, Thailand, Ukraine and Venezuela are located in Georgetown.