Britain's Queen Elizabeth II and Britain's Prince Philip, Duke of Edinburgh travel in a horse-drawn carriage past Buckingham Palace on their way to Horse Guards Parade for the Queen's Birthday Parade, 'Trooping the Colour', in London on June 11, 2016. Trooping The Colour and the fly-past are part of a weekend of events to celebrate the Queen's 90th birthday. / AFP / JUSTIN TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
