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

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On February 24, 2010, President Barack Obama nominated Mr. Ayers to serve as...

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Pickford Theater in the Madison Building.
Find out how our architects work the ADA into historic buildings on the Capitol...

Architecture

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    National Garden Highlights Regional Plants and Sustainable Practice

    An outdoor laboratory for gardening in harmony with natural ecosystems.

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    Beyond the Dome – USBG Production Facility

    There are 16 growing zones, each one adjusted to precise light, temperature and humidity settings to ensure the plants' optimum…

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U.S. Botanic Garden