Hours: Grounds open daily 24 hours. Buildings Mon. and Wed.-Fri. 10-5, Sat.-Sun. 11-6, mid-May to mid-Oct. Guided tours in English are given Wed.-Mon. at 10 and 2, mid-May to early Sept.; Sat.-Sun. at 10 and 2, early Sept. to mid-Oct. Phone ahead to confirm schedule. Allow 1 hour, 30 minutes minimum.