Annapolis, the capital of Maryland, is located on Chesapeake Bay. The city was a central harbor in colonial times and has the distinction of serving as an early national capital for the United States. The narrow streets feature historic homes and restored buildings such as the Hammond-Harwood House, a structure that showcases architecture from the 18th and 19th centuries. The waterfront harbor in Annapolis allows for ship watching and the lively cafes and shops of Market House are an inviting place to relax. The grey stone U.S. Naval Academy is located in Annapolis and has more than 4000 midshipmen training to become Naval Officers. Guided tours of the Academy are available for the public. Guided tours within the city are also offered via Capital City Colonials, a company that features guides in colonial dress. For the outdoor enthusiast, Amphibious Horizons provides kayak rentals and trips to a variety of destinations on the Chesapeake Bay.