Old Patent Office Building, Government building in Downtown Historic District, Washington, D.C., United States.
The Old Patent Office Building features Greek Revival architecture with Corinthian columns, grand galleries, and symmetrical elements across an entire city block.
Built between 1836 and 1865, the structure served as a military hospital during the Civil War before becoming the United States Patent and Trademark Office headquarters.
The building houses both the Smithsonian American Art Museum and National Portrait Gallery, displaying significant collections of American artistic heritage.
Located between F and G Streets and 7th and 9th Streets in Chinatown, the building welcomes visitors daily to explore its extensive art collections.
Clara Barton made history in this building as the first female federal employee to receive equal pay to her male counterparts between 1854 and 1857.
Location: Washington, D.C.
Architectural style: Greek Revival architecture
Part of: Downtown Historic District
GPS coordinates: 38.89712,-77.02305
Latest update: May 16, 2025 08:36
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