Northwest, Washington, D.C. in the context of "Georgetown Park"

The British Embassy, Washington D.C. (alternatively in the US, Embassy of the United Kingdom, Washington, D.C.) is the British sovereign's diplomatic mission to the United States of America, representing the interests of the United Kingdom and British Government. It is located at 3100 Massachusetts Avenue NW in Washington, D.C. The embassy compound includes the chancery offices, as well as the British Ambassador's residence.

Washington, D.C., is administratively divided into four geographical quadrants of unequal size, each delineated by their ordinal directions from the medallion located in the Crypt under the Rotunda of the Capitol. Street and number addressing, centered on the Capitol, radiates out into each of the quadrants, producing a number of intersections of identically named cross-streets in each quadrant. Originally, the District of Columbia was a near-perfect square but contained more than one settlement; the Capitol was to be the center of the City of Washington. Thus, the Capitol was never located at the geographic center of the whole territory, which was eventually north of the Potomac River, consolidated into one city. (The geographic center was located near the onetime marshy area of the present-day intersection of 17th Street, NW and Constitution Ave.) As a result, the quadrants are of greatly varying size. Northwest is quite large, encompassing over a third of the city's geographical area, while Southwest is little more than a few neighborhoods, large parks, and a military base.

The boundaries of the quadrants are not necessarily straight lines radiating from the medallion, but in three instances follow the paths of the boundary streets (which in some cases curve around topographical features): North Capitol Street, South Capitol Street, and East Capitol Street. The axis of the National Mall through the Washington Monument and the Lincoln Memorial forms the boundary running west of the medallion.

The National Archives Building, known informally as Archives I, is the headquarters of the United States National Archives and Records Administration. It is located north of the National Mall at 700 Pennsylvania Avenue, N.W. in Washington, D.C. The rotunda entrance is on Constitution Avenue, and the research entrance is on Pennsylvania Avenue. A second larger facility, Archives II, also known as A2, is located in College Park, Maryland.

Built in the 1930s, the National Archives Building was designated a contributing property to the Pennsylvania Avenue National Historic Site in 1966 and added to the National Register of Historic Places in 1971. It was designated a National Historic Landmark in December 2023.

The United States Department of the Interior (DOI) is an executive department of the U.S. federal government responsible for the management and conservation of most federal lands and natural resources. It also administers programs relating to Native Americans, Alaska Natives, Native Hawaiians, and four of the five inhabited insular areas of the United States, as well as programs related to historic preservation. About 75% of federal public land is managed by the department, with most of the remainder managed by the Department of Agriculture's Forest Service. The department was created on March 3, 1849. It is headquartered at the Main Interior Building, located at 1849 C Street NW in Washington, D.C.

The department is headed by the secretary of the interior, who reports directly to the president of the United States and is a member of the president's Cabinet. The current interior secretary is Doug Burgum, who was sworn in on February 1, 2025.

38°54′20″N 77°02′29″W / 38.9056494°N 77.0414223°W / 38.9056494; -77.0414223

The name "M Street" refers to two major roads in the United States capital of Washington, D.C. Because of the Cartesian coordinate system used to name streets in Washington, the name "M Street" can be used to refer to any east–west street located twelve blocks north or south of the dome of the United States Capitol (not thirteen blocks, as there is no J Street). Thus, in all four quadrants of the city there are streets called "M Street", which are disambiguated by quadrant designations, namely, M Street NW, NE, SW, and SE.

The National Aquarium, Washington, D.C., was an aquarium in Washington D.C. It was located in the Herbert C. Hoover Building (owned by the General Services Administration), which is bounded by 14th Street NW on the east, 15th Street NW on the west, Pennsylvania Avenue NW on the north, and Constitution Avenue NW on the south. It was the first free and public aquarium in the United States.

The National Aquarium in Washington, D.C. was smaller than its counterpart in Baltimore, Maryland — a facility also known as the National Aquarium, although independent until the two aquariums signed an alliance in 2003. The Washington aquarium closed on September 30, 2013, after 140 years, the longest continuously operating aquarium in the United States at the time.

The Harry S Truman Building is the headquarters of the United States Department of State. It is located in Washington, D.C., and houses the office of the United States secretary of state.

The Truman Building is located in the Foggy Bottom neighborhood at 2201 C Street NW, bounded by C Street to the south, E Street, D Street, and Virginia Avenue to the north, 21st Street to the east, and 23rd Street to the west. It is located to the west of Edward J. Kelly Park and north of the National Academy of Sciences building and the National Mall.

The British ambassador's residence in Washington, D.C. is located at 3100 Massachusetts Avenue, Northwest, Washington, D.C. in the Embassy Row neighborhood.