$10; $5 (ages 65+ and students with ID); free (ages 0-11 and to all the first Fri. of the month). Shuttle service to and from Manhattan is available Sun. for a fee.
Wed.-Fri. 10-5 (also first Fri. of the month 5-8, May-Sept.), Sat.-Sun. 11-6. Guided tours are given at 2. Allow 30 minutes minimum.