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

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Front view of the Russell Senate Office Building at night.
The Russell Senate Office Building (built 1903-1908) is the oldest of the...

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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 a Capitol Power Plant chiller that's reaching the end of its life expectancy.
Fiscal Year 2016 Appropriations With the support of Congress, the Architect of...

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Beth Burrous, biochemist and USBG volunteer.
Join this walking tour highlighting African plants that are used to make...