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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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Ten Steps to Energy Savings and Sustainability for your Office
The Architect of the Capitol’s Legacy of Sustainability began with the setting...

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Blue heron carved in stone at the focal point, the central fountain, in the perimeter wall surrounding Capitol Square.
Architect of the Capitol Stephen Ayers describes his love of birds and their...

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