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

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The U.S. Capitol Rotunda is a large, domed, circular room located 96 feet in diameter and 180 feet in height located in the center of the United States Capitol on the second floor.
The U.S. Capitol Rotunda is a large, domed, circular room 96 feet in diameter...

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A crowd of people visiting the Capitol during visitor hours
Please note: Many of these Capitol Hill buildings are working office buildings...

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Photo of the East Front of the U.S. Capitol Building looking North to South.
AOC's annual Performance and Accountability Report (PAR) provides the results...

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The Capitol Crypt, which now houses statuary and exhibitions, was once used as an informal storage space where bicycles were parked, seen here circa 1900.
The term “crypt” has long referred to a space beneath the main floor of a...

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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