Great Hall and building tour free. Exhibits $10; $7 (ages 3-17 and 60+ and students with ID).
Station: Judiciary Square
Mon.-Sat. 10-5, Sun. 11-5. Guided 45-minute building tours are given daily at 11:30, 12:30 and 1:30 when docents are available; phone ahead to confirm schedule. Other tours are offered; check the website for details. Closed Thanksgiving, Christmas and occasionally for special events. Allow 1 hour minimum.