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

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Thomas Jefferson Building
The Library of Congress began in 1800 with a small appropriation to buy...

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The Summerhouse on the Capitol Grounds
A few ideas to help you in planning a visit to Capitol Hill.

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Dr. William Thornton
 The Architect of the Capitol (AOC) is the builder and steward of America’s...

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Generator Progress May 2014
Work is underway at the northwest corner of the Library of Congress John Adams...

Plan Your Visit

U.S. Capitol Map

U.S. Capitol Map

View a map of the U.S. Capitol and other buildings and grounds cared for by the Architect of the Capitol.