The United States Capitol, often called the Capitol Building or Capitol Hill, is the seat of the United States Congress, the legislative branch of the U.S. federal government.
Capitol Hill, in addition to being a metonym for the United States Congress, is the largest historic residential neighborhood in Washington, D.C., stretching easterly in front of the United States Capitol along wide avenues.
The United States Congress is the bicameral legislature of the federal government of the United States consisting of two chambers: the Senate and the House of Representatives.
The History of the United States Capitol by U.S. Capitol
It sits atop Capitol Hill, at the eastern end of the National Mall in Washington, D.C. Though not at the geographic center of the Federal District, the Capitol forms the origin point for the District's street-numbering system and the District's four quadrants.
Washington, D.C., formally the District of Columbia and commonly referred to as "Washington", "the District", or simply "D.C.", is the capital of the United States.
United States Capitol Building by U.S. Capitol
The original building was completed in 1800 and was subsequently expanded, particularly with the addition of the massive dome.
Like the principal buildings of the executive and judicial branches, the Capitol is built in a distinctive neoclassical style and has a white exterior.
Both its east and west elevations are formally referred to as fronts, though only the east front was intended for the reception of visitors and dignitaries.
In 2014, scaffolding was erected around the dome for a restoration project scheduled to be completed by early 2017.