$5; $2 (students with ID); free (ages 0-5); $10 (family, two adults and up to three children under 18).
Daily 10-5, July-Aug.; Tues.-Sat. 1-4, Apr.-June and Sept.-Nov.; by appointment rest of year. Changing of the guard ceremony daily at 11 and 4, July-Aug. (weather permitting). Closed Jan. 1, Christmas and day after Christmas.