From left: the Duchess of Cornwall, Britain's Prince Charles, Queen Elizabeth II and Prince William stand on the balcony at Buckingham Palace during the Diamond Jubilee celebrations in central London Tuesday June 5, 2012. Four days of nationwide celebrations during which millions of people have turned out to mark the Queen's Diamond Jubilee conclude on Tuesday with a church service and carriage procession through central London. (AP Photo/Stefan Wermuth, Pool)