THOMAS JEFFERSON BUILDING -- First Street and Independence Avenue SE.

Points of interest: the Great Hall, the Main Reading Room, Hispanic Reading Room, Rare Book Room, Local History and Genealogy Reading Room, ground floor exhibition hall and Visitors Services Center, Coolidge Auditorium.

At the Visitor Services Center, an orientation film, "America's Library," is shown hourly from 8:45 a.m. to 8:45 p.m. weekdays, and 8:45 to 5:45, weekends. Guided tours follow, hourly, 9 to 4 weekdays.

Exhibition Hall hours: weekdays 8:30 a.m. to 9:30 p.m.; weekends 8:30 to 6.

Hours for Main Reading Room and Local History and Genealogy Reading Room: weekdays 8:30 a.m. to 9:30 p.m.; Saturday 8:30 to 5; Sunday 1 to 5. Rare Book Room and Hispanic Room hours: weekdays 8:30 to 5. JOHN ADAMS BUILDING -- Second Street and Independence Avenue SE.

Points of interest: Art Deco building entrance, and murals in the Social Science Reading Room, fifth floor. Hours: Monday to Friday 8:30 a.m. to 9:30 p.m., Saturday, 8:30 to 5, Sunday, 1 to 5. JAMES MADISON MEMORIAL BUILDING -- 101 Independence Avenue SE.

Points of interest: Atrium, exhibition hall, Mary Pickford Theater, cafeteria, coffee shop.

Exhibition hall hours: weekdays 8:30 a.m. to 9:30 p.m.; weekends 8:30 to 6. Copyright exhibit hours: weekdays 8:30 to 5. Cafeteria, sixth floor; hours: weekdays 8:30 to 3:30. Coffee shop, ground floor; hours: weekdays 8:30 to 4; Saturdays, 8:30 to 2.