$7; $6 (ages 62+ and students with ID); $3 (ages 0-12); free (active military with ID and up to five dependents). Mansion tour or planetarium day show additional $6. Planetarium night show $10; $9 (ages 62+ and students with ID); $8 (ages 0-12).
Tues.-Sat. 11-5, Sun. noon-5, late June-Labor Day; Tues. and Fri.-Sun. noon-5, day after Labor Day-late Oct.; Tues. and Sat.-Sun. noon-4, rest of year. House tours depart at 12:30, 1, 2, 3 and 4. Planetarium schedule varies; phone ahead. Closed major holidays.