1600 Pennsylvania Avenue NW. Arguably the most powerful home on the planet, the White House is not only the residence of the President of the United States, but the symbolic center of American Democracy. The seat of the executive branch is replete with both architectural beauty and historical anecdotes. From the West Wing to the Rose Garden and the 18 acres of lush grounds, the White House is a mainstay on the list of things to see in DC. Encounter it on our American Scandal walking tour and our Haunted History DC Ghost Tour.