Britain's Prince William and his wife Kate, Duchess of Cambridge take an open top carriage ride through the streets of London after a Diamond Jubilee Luncheon given for The Queen, Tuesday June 5, 2012 . Crowds cheering "God save the queen!" and pealing church bells greeted Queen Elizabeth II on Tuesday as she arrived for a service at St. Paul's Cathedral on the last of four days of celebrations of her 60 years on the throne. (AP Photo/Peter Byrne/Pool)