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

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Outside view of the U.S. Botanic Garden Conservatory and sign.
From jungle to desert to primeval paradise, the indoor gardens and galleries...

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A virtual Map of Capitol Hill from above
View 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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Photo of Saccharum officinarum.
Discover the history, botany, production and processing of sugarcane, sugar...

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