Britain's Catherine, (R) Duchess of Cambridge is greeted by children after an event at the Northside Center for Child Development in the Harlem section of New York, December 8, 2014. Prince William and his wife Catherine are on their first visit to New York City, a whirlwind trip that includes visits to a Harlem child development center and the September 11 Monument and Museum. REUTERS/Brendan McDermid (UNITED STATES - Tags: ENTERTAINMENT SOCIETY POLITICS ROYALS)