Library of Congress
Visit the Library of Congress' Thomas Jefferson Building, known for its magnificent 19th-century architecture and changing exhibitions. Discover historical treasures and photographs documenting America at your national library. Open Tuesdays - Saturdays 10 a.m. - 5 p.m. Free and open late 5 - 8 p.m. on Thursdays for Live! at the Library. Free timed-entry passes required at https://loc.gov/visit. Closed Sundays and Mondays.