$33; $31 (ages 65+); $25 (ages 3-11). Prices may vary.
Tours are given daily on the hour noon-6, late June-Labor Day; daily on the hour noon-4, early June to late June; daily at noon, 2 and 4, early May-early June and day after Labor Day to mid-Sept.; Sat.-Sun. at noon, 2 and 4, mid-Sept. to early Oct. Phone ahead to confirm schedule.