Machine derived contents note: skip navigation -- Library of Congress -- Holiday Weekend Maintenance -- Due to system maintenance, our websites -- (including loc.gov, copyright.gov, and others) are unavailable. -- We expect them to be available again by the morning of Monday, August 1 . -- Congress.gov is available. Data is current through Thursday, July 28 and updates will resume on Monday, August 1. -- Explore the Library of Congress on social media. -- Visit the Library of Congress in Washington, D.C. to see the following exhibits in the Thomas Jefferson Building. -- Open Monday -- Saturday, 8:30 a.m. -- 5 p.m. Located at 101 Independence Ave. SE, Washington, DC 20540 -- General Information: (202) 707-5000.