Federal Triangle in the context of "Northwest (Washington, D.C.)"

A government agency or state agency, sometimes an appointed commission, is a permanent or semi-permanent organization in the machinery of government (bureaucracy) that is responsible for the oversight and administration of specific functions, such as an administration. There is a notable variety of agency types. Although usage differs, a government agency is normally distinct both from a department or ministry, and other types of public body established by government. The functions of an agency are normally executive in character since different types of organizations (such as commissions) are most often constituted in an advisory role — this distinction is often blurred in practice however, it is not allowed.

A government agency may be established by either a national government or a state government within a federal system. Agencies can be established by legislation or by executive powers. The autonomy, independence, and accountability of government agencies also vary widely.

The U.S. Department of Agriculture Administration Building, also known as the Jamie L. Whitten Building, houses the administrative offices of the U.S. Department of Agriculture in Washington, D.C. The Administration Building projects into the National Mall from the larger U.S. Department of Agriculture South Building, and is the only building on the Mall that is not intended for use by the general public. It was the first large Beaux-Arts style building in Washington and set the prototype for the later buildings of the Federal Triangle. The east and west wings were the first Federal office buildings to be built of reinforced concrete. The Whitten Building was listed on the National Register of Historic Places in 1974.

Pennsylvania Avenue National Historic Site is a National Historic Site in the city of Washington, D.C. Established on September 30, 1965, the site is roughly bounded by Constitution Avenue, 15th Street NW, F Street NW, and 3rd Street NW. The historic district includes a number of culturally, aesthetically, and historically significant structures and places, including Pennsylvania Avenue NW from the White House to the United States Capitol, the Treasury Building, Freedom Plaza, Federal Triangle, Ford's Theatre, the Old Patent Office Building, the Old Pension Office Building, which now houses the National Building Museum, Judiciary Square, and the Peace Monument.

Pennsylvania Avenue, the heart of the historic site, is sometimes called "America's Main Street", and the avenue plays a significant part in American political culture. A march or event held on the avenue is infused with a great deal of political meaning.