National Historic Landmark Old Patent Office Building

E158827

Greek Revival building National Historic Landmark former government office building historic building

The National Historic Landmark Old Patent Office Building is a prominent 19th-century Greek Revival structure in Washington, D.C., now best known as the historic home of the Smithsonian American Art Museum and the National Portrait Gallery.

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All labels observed (2)

Label	Occurrences
National Historic Landmark Old Patent Office Building canonical	2
Old Patent Office Building	2

How this entity was disambiguated

This entity first appeared as the object of triple T1378242 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: National Historic Landmark Old Patent Office Building
Context triple: [Smithsonian American Art Museum, locatedIn, National Historic Landmark Old Patent Office Building]

A. Smithsonian Institution Building
The Smithsonian Institution Building, often called "The Castle," is a distinctive red sandstone landmark on the National Mall that serves as the historic headquarters and visitor center of the Smithsonian Institution.
B. National Archives Building
The National Archives Building is a historic federal building in Washington, D.C. that houses and displays foundational U.S. documents such as the Declaration of Independence, the Constitution, and the Bill of Rights.
C. Treasury Building
The Treasury Building is a historic federal office building in Washington, D.C., that houses the leadership and core operations of the U.S. government’s financial and economic management.
D. Old State, War, and Navy Building
The Old State, War, and Navy Building is a historic 19th-century government office building in Washington, D.C., known for its elaborate Second Empire architecture and its role in housing key U.S. executive branch departments.
E. Smithsonian Arts and Industries Building
The Smithsonian Arts and Industries Building is a historic museum on the National Mall in Washington, D.C., known as one of the oldest Smithsonian buildings and an early home for the Institution’s exhibitions of American innovation and culture.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: National Historic Landmark Old Patent Office Building
Target entity description: The National Historic Landmark Old Patent Office Building is a prominent 19th-century Greek Revival structure in Washington, D.C., now best known as the historic home of the Smithsonian American Art Museum and the National Portrait Gallery.

A. Smithsonian Institution Building
The Smithsonian Institution Building, often called "The Castle," is a distinctive red sandstone landmark on the National Mall that serves as the historic headquarters and visitor center of the Smithsonian Institution.
B. National Archives Building
The National Archives Building is a historic federal building in Washington, D.C. that houses and displays foundational U.S. documents such as the Declaration of Independence, the Constitution, and the Bill of Rights.
C. Treasury Building
The Treasury Building is a historic federal office building in Washington, D.C., that houses the leadership and core operations of the U.S. government’s financial and economic management.
D. Old State, War, and Navy Building
The Old State, War, and Navy Building is a historic 19th-century government office building in Washington, D.C., known for its elaborate Second Empire architecture and its role in housing key U.S. executive branch departments.
E. Smithsonian Arts and Industries Building
The Smithsonian Arts and Industries Building is a historic museum on the National Mall in Washington, D.C., known as one of the oldest Smithsonian buildings and an early home for the Institution’s exhibitions of American innovation and culture.
F. None of above. chosen

Statements (44)

Predicate	Object
instanceOf	Greek Revival building ⓘ National Historic Landmark ⓘ former government office building ⓘ historic building ⓘ
alsoKnownAs	National Historic Landmark Old Patent Office Building ⓘ Patent Office Building ⓘ linked to: Patent Office Building (Washington, D.C.)
architecturalStyle	Greek Revival ⓘ
associatedWith	National Portrait Gallery ⓘ Smithsonian American Art Museum ⓘ United States Patent and Trademark Office ⓘ
category	Government buildings on the National Register of Historic Places in Washington, D.C. ⓘ Greek Revival architecture in Washington, D.C. ⓘ Museums in Washington, D.C. ⓘ National Historic Landmarks in Washington, D.C. ⓘ
city	Washington, D.C. ⓘ
contains	Kogod Courtyard ⓘ galleries of the National Portrait Gallery ⓘ galleries of the Smithsonian American Art Museum ⓘ linked to: Smithsonian American Art Museum
country	United States ⓘ linked to: United States of America
currentUse	public museum space ⓘ
district	Downtown Washington, D.C. ⓘ
era	19th century ⓘ
function	museum complex ⓘ
governingBody	Smithsonian Institution ⓘ
heritageDesignation	National Historic Landmark ⓘ National Register of Historic Places listing ⓘ linked to: National Register of Historic Places
locatedIn	Northwest Washington, D.C. ⓘ Penn Quarter ⓘ
location	Washington, D.C. ⓘ
material	marble ⓘ sandstone ⓘ
namedAfter	United States Patent Office ⓘ linked to: United States Patent and Trademark Office
NRHPType	National Historic Landmark ⓘ
occupant	National Portrait Gallery ⓘ Smithsonian American Art Museum ⓘ
originalFunction	United States Patent Office headquarters ⓘ linked to: Patent Office Building (Washington, D.C.)
owner	United States federal government ⓘ linked to: United States government
partOf	Smithsonian Institution ⓘ
publicAccess	open to the public ⓘ
significance	one of the earliest large federal office buildings in the United States ⓘ one of the finest examples of Greek Revival architecture in Washington, D.C. ⓘ
streetAddress	between F and G Streets NW and 7th and 9th Streets NW ⓘ
use	art museum ⓘ portrait gallery ⓘ

How these facts were elicited

Referenced by (4)

Full triples — surface form annotated when it differs from this entity's canonical label.

Smithsonian American Art Museum → locatedIn → National Historic Landmark Old Patent Office Building ⓘ

Old Patent Office Building → alsoKnownAs → National Historic Landmark Old Patent Office Building ⓘ

subject linked to: National Historic Landmark Old Patent Office Building

National Collection of Fine Arts → locatedInBuilding → Old Patent Office Building ⓘ

linked to: National Historic Landmark Old Patent Office Building

Kogod Courtyard → locatedInBuilding → Old Patent Office Building ⓘ