The Changing of the Guard ceremony is the spectacle every London visitor must see at least once: stone-faced, bearskin-hatted guards changing posts with much fanfare, accompanied by a brass band. (This is also where you’ll see nearly every tourist in London gathered in one place at the same time.) The center of all this fanfare is the half-hour ceremony that takes place in the forecourt (between the palace and the fence) in front of Buckingham Palace. At 11:00 a batch of fresh guards meets the O