$8; $4 (ages 3-12); free (ages 0-3 and military with ID).
Twenty-minute guided tours are offered Mon.-Sat. 10-8, Sun. and Labor Day 10-5, mid-June through Labor Day; Mon.-Fri. 11-4, Sat.-Sun. 10-5, May 1 to mid-June and day after Labor Day-Oct. 31; Wed.-Fri. 11-4, Sat.-Sun. 10-5, in Apr. and Nov.-Dec.; Sat.-Sun. and Presidents Day 11-4, rest of year (weather permitting). Last tour begins 30 minutes before closing. Closed Thanksgiving and Christmas. Phone ahead to confirm schedule.