PHOTOS: See Amazing Pictures of Pope Francis’ Historic Visit to U.S.

Pope Francis and Cardinal Timothy Dolan, left, pray at the South Pool of the 9/11 Memorial in downtown Manhattan, on Sept. 25, 2015

Pope Francis addresses the 70th session of the United Nations General Assembly, at United Nations headquarters in New York City. on Sept. 25, 2015.

Pope Francis reaches out to 5th grader Omodele Ojo of East New York, Brooklyn as he is greeted as he arrives at John F. Kennedy International Airport on Sept. 24, 2015, in New York.

Pope Francis pauses in front of a sculpture of Spanish-born Junipero Serra, the Franciscan Friar known for starting missions in California, in Statuary Hall at the U.S. Capitol in Washington, on Sept. 24, 2015

Pope Francis waves to the crowd from the popemobile during a parade along Constitution Avenue in Washington, on Sept. 23, 2015.

President Barack Obama talks with Pope Francis in the Oval Office of the White House in Washington, on Sept. 23, 2015.

President Barack Obama and Pope Francis walk down the Colonnade before meeting in the Oval Office of the White House in Washington, on Sept. 23, 2015.

First Lady Michelle Obama, President Barack Obama, and Pope Francis wave during an arrival ceremony at the White House in Washington, on Sept. 23, 2015.

President Barack Obama welcomes Pope Francis during an arrival ceremony at the White House in Washington, on Sept. 23, 2015.

People wait for the arrival of Pope Francis at the White House in Washington, on Sept. 23, 2015.

Pope Francis waves from a Fiat 500 as his motorcade departs from Andrews Air Force Base, Md., on Sept. 22, 2015.