Photograph of people walking outside on a Self-Guided Tour of Capitol Hill
Visitors can tour many highlights on Capitol Hill without registering.


The Architect of the Capitol’s challenge is unique – maintaining aging, iconic buildings; adapting state-of-the-art technology; and increasing responsiveness to environmental, security and safety considerations in a rich historical setting.
The Architect of the Capitol's challenge is unique – maintaining aging, iconic...


Federal Office Building No. 8, now known as the O’Neill House Office Building, under original construction. Photo courtesy of the FDA.
A brief history of the O'Neill Building.

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Court of Neptune Fountain Conservation

Conservation of the Jefferson Building's Court of Neptune Fountain

The Architect of the Capitol conserved the bronze sculptures of the Thomas Jefferson Building's Court of Neptune Fountain with a thorough cleaning to remove stains and mineral buildup caused by weathering and fountain water. Cleaning was followed by waxing to preserve the completed bronze luster. The AOC also cleaned the masonry, repairing and repainting the basin to restore the overall visual composition of the fountain.

U.S. Library of Congress
Thomas Jefferson Building
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