South Dakota Air and Space Museum is outside the main gate at Ellsworth Air Force Base. Displays depict aviation history in South Dakota and at Ellsworth Air Force Base. Highlights include a Minuteman II intercontinental ballistic missile silo, Gen. Dwight Eisenhower's Mitchell B-25 bomber and a variety of aviation displays.
Hours: Daily 8:30-6, June 1-Labor Day; 8:30-4:30, rest of year. Bus tours to a Minuteman missile silo and Ellsworth Air Force Base depart daily on the hour 9-4, mid-May to mid-Sept. Closed Jan. 1, Easter, Thanksgiving and Christmas.