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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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Photo of Stephen T. Ayers, FAIA, LEED AP, Architect of the Capitol in front of the Capitol Building
On February 24, 2010, President Barack Obama nominated Mr. Ayers to serve as...

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Richard Edmonds, Industrial Engineering Technician at the Capitol Power Plant.
Our approach to sustainability and energy on Capitol Hill is built upon three...

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