The United States Naval Academy Museum is a public maritime museum in Annapolis, Maryland, United States. Being part of the United States Naval Academy, it is located at Preble Hall within the Academy premises. The museum has an area of 12,000 square feet (1,100 m²) with four galleries. The Museum is open seven days a week, from 9 am - 5 pm on Mondays through Saturdays, and 11 am - 5 pm on Sundays; it is only closed on Thanksgiving Day, Christmas Day, and New Year's Day.