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Black and white picture of Frederick Law Olmsted  best known for designing the grounds of New York City’s Central Park, the U.S. Capitol in Washington, D.C., the Biltmore Estate in North Carolina, and the 1893 World’s Columbian Exposition in Chicago.
Regarded as the founder of American landscape architecture, Frederick Law...

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A virtual Map of Capitol Hill from above
A map of the U.S. Capitol and other buildings and grounds cared for by the...

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

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Earth Day Celebration at the U.S. Botanic Garden
Join the United States Botanic Garden for an Earth Day Celebration on the...

Explore Capitol Hill

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    Saving Life & Limb: AOC Arborists

    Their official job titles are Tree Surgeon and they work to keep their patients alive for hundreds of years.

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    Grant Memorial Restoration

    Starting spring 2015, the AOC will begin conservation efforts to restore the bronze monuments of the Grant Memorial located in Union Square.

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    Meet the Carillonneur of the Capitol

    Jim Saenger, the Capitol’s Carillonneur, has perhaps one of the most unique and least visible jobs on the Hill.

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    Olmsted Terrace Preservation

    The AOC has started a five-phased project that will repair the masonry at the terrace walls.

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Capitol Grounds