When Prince William and the Duchess of Cambridge visited New York in 2014, they chose to stay at the historic Carlyle Hotel. The five-star hotel is a longtime favourite for foreign royalty and American high society alike, as one of the places to be seen for many years. It's a sentimental choice for William, too: his parents, Prince Charles and Princess Diana, were visitors at the hotel, and Diana stayed there on post-divorce trips to America as well.