A 12-minute movie of the Library of Congress is continuously shown in the center of the exhibition hall from 10 in the morning to 5: 00/5 in the afternoon. The visiting hours of the library are from Monday to Saturday, every morning10: 30-11:30, and every afternoon is from 2: 30 to 3: 30. If you need to look it up in the library, please go to the reading room on the first floor of Jefferson Building.