Library of Congress

Known to some natives as the most beautiful building in Washington, DC, the Library of Congress is the largest library in the world. Visitors can peruse texts dating back hundreds of years, as well as Thomas Jefferson's library  and the Library of Congress Bible Collection. If you want to look at photograph collections that aren't on exhibit, you can register for a Library of Congress reader card when you arrive - the process only takes a few minutes. Visit https://www.loc.gov/rr/print/ for more information.