Stewards of the iconic buildings and grounds of Capitol Hill since 1793.

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George Washington statue
This statue of George Washington was given the National Statuary Hall...

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A view of the Capitol Visitor Center lit up at night
The Office of Congressional Accessibility Services (OCAS) provides a variety...

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Photo of Capitol Hill steps.
Download a PDF of the full list.

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City of Trees book cover artwork
Winter is the best time to appreciate the architecture of the historic trees...

House Office Buildings

The first congressional office buildings were constructed immediately after the turn of the century to relieve overcrowding in the Capitol. Previously, members who wanted office space had to rent quarters or borrow space in committee rooms. The Cannon House Office Building, completed in 1908, is the oldest congressional office building, with the Longworth, Rayburn and Ford House Office Buildings being added later to house the growing Congress.

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