(180520) -- WINDSOR, May 20, 2018 (Xinhua) -- The UK's Prince Harry and American actress Meghan Markle greet the crowd after their wedding ceremony in Windsor Castle, Windsor, Britain, on May 19, 2018. The UK's Prince Harry and American actress Meghan Markle has tied the knot Saturday at St. George's Chapel in Windsor. (Xinhua/Pool/Hugo Philpott/UPI)