Britain's Zara Philips leaves St Paul's Cathedral after a service of thanksgiving to celebrate the Diamond Jubilee of Queen Elizabeth in central London 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. REUTERS/David Moir (BRITAIN - Tags: ANNIVERSARY ENTERTAINMENT POLITICS SOCIETY RELIGION ROYALS)