The White House is the official residence and principal workplace of the President of the United States, located at 1600 Pennsylvania Avenue NW in Washington, D.C. It has been the residence of every U.S. president since John Adams in 1800.
Today, the White House Complex includes the Executive Residence, West Wing, East Wing, the Eisenhower Executive Office Building—the former State Department, which now houses offices for the President's staff and the Vice President—and Blair House, a guest residence.
The Executive Residence is made up of six stories—the Ground Floor, State Floor, Second Floor, and Third Floor, as well as a two-story basement. The term White House is often used as a metonym for the Executive Office of the President of the United States and for the president's administration and advisers in general, as in "The White House has decided that....". The property is a National Heritage Site owned by the National Park Service and is part of the President's Park. In 2007, it was ranked second on the American Institute of Architects list of "America's Favorite Architecture".