Serving Congress and the Supreme Court, preserving America's Capitol, and inspiring memorable experiences

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Signing of the Constitution
Howard Chandler Christy’s painting of the signing of the United States...

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Guided Tours: Buildings on Capitol Hill
Official Tours of the U.S. Capitol Building are offered Monday through...

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The AOC maintains the grounds of the U.S. Capitol
The roles and responsibilities of the Architect of the Capitol cover an...

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Capitol Carillonneur
Capitol Hill, with its rich history and iconic buildings, allows for an...

Library of Congress

The law creating the Library of Congress, approved on April 24, 1800, called for its books to be housed in "a suitable apartment" in the Capitol. The copyright law of 1870 brought two copies of all copyright items to the Library. It immediately became apparent that the Library would soon run out of space. The Library’s Thomas Jefferson Building opened in in 1897 after the decision to relocate the Library of Congress into a separate facility was reached after years of discussion.

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