March 24, 2013
Library of Congress, Washington, D.C.
Photograph by Sisse Brimberg, National Geographic
Researchers at work ring the Main Reading Room of the Library of Congress in Washington, D.C. Established in 1800, the original library was burned by British troops. Rebuilt in 1815 with Thomas Jefferson's personal book collection, the Library of Congress is today the world's largest library.
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