British Royals Visit the U.S.

U.S. President Barack Obama meets Britain's Prince William in the Oval Office of the White House in Washington, Dec. 8, 2014.

Prince William is greeted by World Bank President Jim Yong Kim before speaking on illegal transportation of wildlife parts across borders during an International Corruption Hunters Alliance event, at the World Bank in Washington, DC, Dec. 8, 2014.

Chirlane McCray, first lady of New York City, and Catherine, Duchess of Cambridge, accept flowers from students outside Northside Center for Child Development, in New York, Dec. 8, 2014.

Prince William, Duke of Cambridge, and his wife Catherine, Duchess of Cambridge, arrive at the Carlyle hotel in New York, Dec. 7, 2014.

A local resident holds a cut-out of the Duke and Duchess of Cambridge, Prince William and his wife, Catherine, outside the Carlyle Hotel in New York, Dec. 7, 2014.