Police officers place there hats on Cynthia Sison, left, and Mercy Mesina, both of the Philippines outside the Olympic Park ahead of the 2012 Summer Olympics Opening Ceremony, Friday, July 27, 2012, in London. (AP Photo/Matt Rourke)
Gallery: World dignitaries arrive for Olympics
Jul. 27, 2012 @ 04:28 PM
Heads of state began arriving this afternoon at Buckingham Palace in London for a reception hosted by Queen Elizabeth II prior to the fopening ceremony of the London 2012 Olympic Games, Friday.