Queen Elizabeth II Has Met 12 U.S. Presidents

George W. Bush pulled out all the stops when he hosted Queen Elizabeth at the White House in 2007. The state dinner was the only white-tie event that Bush, a president famous for his Texas drawl and informal style, held at the White House. Here Bush and the queen walk with Prince Philip, Duke of Edinburgh, through St George's Hall at Windsor Castle in England, June 15, 2008. (Tim Graham/Getty Images)