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Old Patent Office Building

Old Patent Office
Old Patent Office, Washington, D.C. 2011.jpg
Location Washington, D.C., United States
Coordinates 38°53′52″N 77°01′23″W / 38.89778°N 77.022936°W / 38.89778; -77.022936Coordinates: 38°53′52″N 77°01′23″W / 38.89778°N 77.022936°W / 38.89778; -77.022936
Built 1836-67
Architectural style Greek Revival
NRHP Reference # 66000902
Significant dates
Added to NRHP

October 15, 1966

Februarys, 1971.
Designated NHL January 12, 1965

October 15, 1966

The historic Old Patent Office Building in Washington, D.C. covers an entire city block defined by F and G Streets and 7th and 9th Streets NW in Chinatown. It served as one of the earliest United States Patent Office buildings.

After undergoing extensive renovations, the building reopened on July 1, 2006 and was renamed The Donald W. Reynolds Center for American Art and Portraiture in honor of a gift from the Donald W. Reynolds Foundation. The building houses two Smithsonian Institution museums: the National Portrait Gallery and the Smithsonian American Art Museum.

Designed in the Greek Revival style by architect Robert Mills, construction started in 1836, and the massive structure took 31 years to complete. United States patent law required inventors to submit scale models of their inventions, which were retained by the Patent Office and required housing. Once home to many early government departments, today the structure houses two museums of the Smithsonian Institution, the Smithsonian American Art Museum and the National Portrait Gallery.

In Pierre (Peter) Charles L'Enfant's plan for the capital city, the site of the Patent Office Building, halfway between the Capitol and the President's House, was set aside for a monumental structure. L'Enfant envisaged a nondenominational "church of the Republic", which he later modified to a Pantheon devoted to great Americans. Mill's described the proportions of the Greek Revival central portico as "exactly those of the Parthenon of Athens", a departure in Washington, where previously ambitious public buildings had been based on Roman and Renaissance precedents. Fireproofing the design was an essential concern: Mills spanned the interior spaces with masonry vaulting without the use of wooden beams. Skylights and interior light courts filled the spaces with daylight.


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