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

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The Cannon House Office Building, completed in 1908, is the oldest congressional office building as well as a significant example of the Beaux Arts style of architecture.
The Cannon House Office Building, completed in 1908, is the oldest...

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The Summerhouse on the Capitol Grounds surrounded by pink azalea flowers.
A few ideas to help you in planning a visit to Capitol Hill.

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

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Anne Frank Tree and marker planted in the ground in front of the Capitol
Anne Frank Tree on Capitol Grounds

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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