$25.95; $22.95 (ages 65+ and military and students with ID); $11.95 (ages 11-18); $49.95 (family, two adults and three children).
Mon.-Sat. noon-7:30, Sun. noon-5, June-Oct.; Fri. 5-7:30, Sat. noon-7:30, Sun. noon-5, rest of year. Tours depart every 30 minutes, June-Oct.; every hour on the hour, rest of year. Phone ahead to confirm schedule. Allow 1 hour minimum.