The White House is the official residence and workplace of the President of the United States. The building was designed by Irish-born architect James Hoban in a neoclassical style. It is located at 1600 Pennsylvania Avenue NW in Washington, D.C. and has been the residence of every U.S. President since John Adams in 1800. Burnt by the British during the war of 1812, the White House has been remodeled and expanded several times over the years. While it is possible to tour parts of the White House interior, arrangements are difficult and must be made months in advance. As the symbol of US presidential power, the White House is an enormously important landmark.