The Obamas Visit the United Kingdom - TIME

Queen Elizabeth II and Prince Philip, Duke of Edinburgh, pose with U.S. President Barack Obama and First Lady Michelle Obama ahead of a state banquet on the second day of the Obamas' visit to the United Kingdom. -- The Obamas Visit the United Kingdom -- The Obamas' Buckingham Palace Visit: Royal Wedding Fever, About a Month Late
Obama's Visit May Have Been Worth $200 Million to Ireland