$24; $22 (ages 65+ and military, law enforcement, teachers and firefighters with ID); $17 (ages 13-17 and students ages 18+ with ID); $10 (ages 6-12 and to all Thurs. 5-8); free (ages 0-5).
Daily 10-5:30 (also Thurs. 5:30-8). Last admission 15 minutes before closing. Free guided tours are generally given daily on the half-hour; phone ahead to confirm schedule. Closed Grand Prix weekend in March, Thanksgiving and Christmas.