Evening Prayer Service At New York's St. Patrick's Cathedral Led By Pope Francis [Getty Images]

NEW YORK, NY - SEPTEMBER 24: Nuns and other guests take photographs of Pope Francis as he exits Saint Patrick's Cathedral after leading evening Vespers on September 24, 2015 in New York City. The pope is on a six-day visit to the U.S., with stops in Washington, New York City and Philadelphia. (Photo by Robert Sabo-Pool/Getty Images)

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