Pope Francis in the U.S. from beginning to end

Pope Francis waves from the top of the steps as he prepares to depart Philadelphia International Airport in Philadelphia, Sunday, Sept. 27, 2015, on his way back to Rome. Pope Francis is wrapped up his 10-day trip to Cuba and the United States on Sunday. (AP Photo/Susan Walsh)

Pope Francis in the U.S. from beginning to end

A look back on the Pope's historic visit to the United States.

06:56 - Source: CNN

Pope Francis visits U.S. and Cuba 60 videos

Pope Francis waves from the top of the steps as he prepares to depart Philadelphia International Airport in Philadelphia, Sunday, Sept. 27, 2015, on his way back to Rome. Pope Francis is wrapped up his 10-day trip to Cuba and the United States on Sunday. (AP Photo/Susan Walsh)

Pope Francis in the U.S. from beginning to end

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Pope Francis addresses a joint meeting of the U.S. Congress in the House Chamber of the U.S. Capitol on September 24, 2015 in Washington, DC.

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Pope Francis addresses a joint meeting of the U.S. Congress in the House Chamber of the U.S. Capitol on September 24, 2015 in Washington, DC.

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JOINT BASE ANDREWS, MD - SEPTEMBER 24: Pope Francis departs from Washington, DC en route to New York City on September 24, 2015 in Joint Base Andrews, Maryland.The Pope is on a six-day trip to the U.S., with stops in Washington, New York City and Philadelphia. (Photo by Patrick Smith/Getty Images)

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Pope Francis speaks during evening prayer service at St. Patrick's Cathedral in New York, Thursday, Sept. 24, 2015. (AP Photo/Mary Altaffer, Pool)

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WASHINGTON, DC - SEPTEMBER 23: Pope Francis leans out and waves to the crowd as he rides in a popemobile along a parade route around the National Mall on September 23, 2015 in Washington, DC. Thousands of people gathered near the Ellipse to catch of glimpse of Pope Francis after he addressed an audience of 15,000 invited guests on the South Lawn of the White House during an official arrival ceremony with President Barack Obama. The Pope began his first trip to the United States at the White House followed by a visit to St. Matthew's Cathedral, and will then hold a Mass on the grounds of the Basilica of the National Shrine of the Immaculate Conception. (Photo by Chip Somodevilla/Getty Images)

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ADDS NAME OF GIRL - Pope Francis reaches to give a blessing to Sophie Cruz, 5, from suburban Los Angeles, during a parade in Washington, Wednesday, Sept. 23, 2015. She also delivered a bright yellow T-shirt and a letter expressing wishes that her mother and father and millions of others who are in the U.S. illegally are allowed to remain in the country. (AP Photo/Alex Brandon, Pool)

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Pope Francis addresses a joint meeting of the U.S. Congress in the House Chamber of the U.S. Capitol on September 24, 2015 in Washington, DC.

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People watch Pope Francis address a Joint Session of Congress in front of the US Capitol in Washington, DC, on September 24, 2015 on the third day of his six-day visit to the US. AFP PHOTO/NICHOLAS KAMM (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)

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WASHINGTON, DC - SEPTEMBER 23: Pope Francis leans out and waves to the crowd as he rides in a popemobile along a parade route around the National Mall on September 23, 2015 in Washington, DC. Thousands of people gathered near the Ellipse to catch of glimpse of Pope Francis after he addressed an audience of 15,000 invited guests on the South Lawn of the White House during an official arrival ceremony with President Barack Obama. The Pope began his first trip to the United States at the White House followed by a visit to St. Matthew's Cathedral, and will then hold a Mass on the grounds of the Basilica of the National Shrine of the Immaculate Conception. (Photo by Chip Somodevilla/Getty Images)

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Pope Francis talks climate change, income inequality

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Pope Francis: 'We must move forward together as one'

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Pope Francis greets well-wishers as he leaves the Apostolic Nunciature to the United States to go to the Basilica of the National Shrine of the Immaculate Conception on September 23, 2015 in Washington, DC. AFP PHOTO/MOLLY RILEY (Photo credit should read MOLLY RILEY/AFP/Getty Images)

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Pope Francis arrives at Catholic University

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Pope Francis waves towards US President Barack Obama and his family as he steps off his plane upon arrival at Andrews Air Force Base in Maryland.

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Pope Francis waves alongside US President Barack Obama upon arrival at Andrews Air Force Base in Maryland, September 22, 2015, on the start of a 3-day trip to Washington. AFP PHOTO / SAUL LOEB (Photo credit should read SAUL LOEB/AFP/Getty Images)

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Pope Francis walks down the steps of his plane upon his arrival at Andrews Air Force Base, Md., Tuesday.

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Pope Francis walks down the steps of his plane upon his arrival at Andrews Air Force Base, Md., Tuesday.

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Pope Francis waves towards US President Barack Obama and his family as he steps off his plane upon arrival at Andrews Air Force Base in Maryland.

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JOINT BASE ANDREWS, MD - SEPTEMBER 22: Pope Francis shakes hands with Vice President Joe Biden along with U.S. President Barack Obama, first lady Michelle Obama, and other political and Catholic church leaders after arriving from Cuba September 22, 2015 at Joint Base Andrews, Maryland. Francis will be visiting Washington, New York City and Philadelphia during his first trip to the United States as Pope. (Photo by Chip Somodevilla/Getty Images)

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Pope Francis waves towards US President Barack Obama and his family as he steps off his plane upon arrival at Andrews Air Force Base in Maryland.

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Pope Francis arrives to celebrate Mass in Revolution Square in Havana, Cuba, Sunday, Sept. 20, 2015. Pope Francis opens his first full day in Cuba on Sunday with what normally would be the culminating highlight of a papal visit: Mass before hundreds of thousands of people in Havana's Revolution Plaza. (Tony Gentile/POOL via AP)

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Pope Francis (R) speaks with US President Barack Obama during a private audience on March 27, 2014 at the Vatican. The meeting at the Vatican comes as a welcome rest-stop for Obama during a six-day European tour dominated by the crisis over Crimea, and the US leader will doubtless be hoping some of the pope's overwhelming popularity will rub off on him. AFP PHOTO / SAUL LOEB (Photo credit should read SAUL LOEB/AFP/Getty Images)

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In this photo taken on Sunday, Sept. 20, 2015, Pope Francis is greeted by faithful as he enters the San Cristobal Cathedral, Havana, Cuba. Francis presided over the evening prayer service in Havana's 18th century cathedral, where he broke from prepared remarks and spoke off-the-cuff at length for the first time during his trip to Cuba. (L'Osservatore Romano/Pool Photo via AP)

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Pope Francis arrives for Mass at Revolution Plaza in Havana, Cuba, Sunday, Sept. 20, 2015. Pope Francis opens his first full day in Cuba on Sunday with what normally would be the culminating highlight of a papal visit: Mass before hundreds of thousands of people in Havana's Revolution Plaza. (AP Photo/Alessandra Tarantino)

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Pope Francis bows his heads during the Via Crucis (Way of the Cross) torchlight procession in Rome, Friday, April 18, 2014. Pope Francis presided over a torch-lit Way of the Cross procession at the Colosseum marking Good Friday in Rome. The pope's resolve to focus the Catholic church's attention on those who suffer was reflected in meditations read aloud to commemorate Jesus' crucifixion. (AP Photo/Alessandra Tarantino)

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Pope Francis speaks with Cuba's President Raul Castro during his arrival ceremony at the airport in Havana, Cuba, Saturday, Sept. 19, 2015. Pope Francis begins a 10-day trip to Cuba and the United States on Saturday, embarking on his first trip to the onetime Cold War foes after helping to nudge forward their historic rapprochement. (AP Photo/Ramon Espinosa)

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Pope Francis' cap flies off his head as he deplanes in Havana, Cuba, Saturday, Sept. 19, 2015. The pope began his 10-day trip to Cuba and the United States, embarking on his first trip to the onetime Cold War foes after helping to nudge forward their historic rapprochement. (AP Photo/Ismael Francisco, Cubadebate Via AP)

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