Pope Francis waves from the plane's steps upon his arrival at the Rome's Fiumicino airport on September 19, 2015. The pontiff heads for Cuba on September 19 on the first-leg of a trip that will also take him to the United States for his most high-profile overseas visit to date. AFP PHOTO / TIZIANA FABI (Photo credit should read TIZIANA FABI/AFP/Getty Images)
Pope Francis Arrives In Cuba
A poster welcoming Pope Francis is seen as Cuba prepares for the pontiff's visit on September 19, 2015 in Santiago de Cuba, Cuba. (Photo by Joe Raedle/Getty Images)
Pope Francis Arrives In Cuba
A poster welcoming Pope Francis is seen on a window of a store as Cuba prepares for the pontiff's visit on September 19, 2015 in Santiago de Cuba, Cuba. (Photo by Joe Raedle/Getty Images)
Pope Francis Arrives In Cuba
Pope Francis is welcomed by Cuban President Raul Castro upon landing at Havana's international airport on September 19, 2015 on the first leg of a high-profile trip that will also take him to the United States. (credit: FILIPPO MONTEFORTE/AFP/Getty Images)
Pope Francis Arrives In Cuba
Pope Francis (L) receives his skull cap back after it was blown away by the wind while he descended from the plane upon landing at Havana's international airport on September 19, 2015 on the first leg of a high-profile trip that will also take him to the United States. (credit: FILIPPO MONTEFORTE/AFP/Getty Images)
Pope Francis Arrives In Cuba
Pope Francis (C-L) is welcomed by Cuban President Raul Castro (C-R) and Cuban children upon landing at Havana's international airport on September 19, 2015 on the first leg of a high-profile trip that will also take him to the United States. (credit: YAMIL LAGE/AFP/Getty Images)
Pope Francis Arrives In Cuba
Pope Francis descends from the plane upon landing at Havana's international airport on September 19, 2015 on the first leg of a high-profile trip that will also take him to the United States. (credit: FILIPPO MONTEFORTE/AFP/Getty Images)
Pope Francis Arrives In Cuba
Pope Francis (C) exits his plate upon landing at Havana's international airport on September 19, 2015, on the first leg of a high-profile trip that will also take him to the United States. (credit: YAMIL LAGE/AFP/Getty Images)
Pope Francis Arrives In Cuba
Pope Francis (C-L) is welcomed by Cuban President Raul Castro (C-R) and Havana's Archbishop, Cardinal Jaime Ortega (C), upon landing at Havana's international airport on September 19, 2015, on the first leg of a high-profile trip that will also take him to the United States. (credit: YAMIL LAGE/AFP/Getty Images)
Pope Francis Arrives In Cuba
Pope Francis fails to catch his skull cap after it was blown away by the wind as he descends from the plane upon landing at Havana's international airport on September 19, 2015 on the first leg of a high-profile trip that will also take him to the United States. (credit: FILIPPO MONTEFORTE/AFP/Getty Images)
Pope Francis Arrives In Cuba
Pope Francis (C) arrives at Havana's international airport on September 19, 2015 on the first leg of a high-profile trip that will also take him to the United States. (credit: FILIPPO MONTEFORTE/AFP/Getty Images)
Pope Francis Arrives In Cuba
Pope Francis (C-L) is welcomed by Cuban President Raul Castro (C-R) upon landing at Havana's international airport on September 19, 2015 on the first leg of a high-profile trip that will also take him to the United States.(credit: FILIPPO MONTEFORTE/AFP/Getty Images)
Pope Francis Arrives In Cuba
Pope Francis' skull cap is blown away by the wind as he descends from the plane upon landing at Havana's international airport on September 19, 2015 on the first leg of a high-profile trip that will also take him to the United States. (credit: FILIPPO MONTEFORTE/AFP/Getty Images)
Pope Francis Arrives In Cuba
Pope Francis (C-L) is welcomed by Cuban President Raul Castro (C-R) upon landing at Havana's international airport on September 19, 2015 on the first leg of a high-profile trip that will also take him to the United States. (credit: FILIPPO MONTEFORTE/AFP/Getty Images)
Pope Francis Arrives In Cuba
Pope Francis' skull cap is blown away by the wind as he descends from the plane upon landing at Havana's international airport on September 19, 2015 on the first leg of a high-profile trip that will also take him to the United States. The Alitalia plane carrying Pope Francis touched down at Havana's Jose Marti airport at 3:50 pm (1950 GMT), as thousands of people lined the road into the city, which was decked out in giant posters of the Argentine pontiff. (credit: FILIPPO MONTEFORTE/AFP/Getty Images)
Pope Francis Arrives In Cuba
Pope Francis (C-L) is welcomed by Cuban President Raul Castro (C-R) upon landing at Havana's international airport on September 19, 2015 on the first leg of a high-profile trip that will also take him to the United States. (credit: FILIPPO MONTEFORTE/AFP/Getty Images)
Pope Francis Arrives In Cuba
Pope Francis' skull cap is blown away by the wind as he descends from the plane upon landing at Havana's international airport on September 19, 2015 on the first leg of a high-profile trip that will also take him to the United States. The Alitalia plane carrying Pope Francis touched down at Havana's Jose Marti airport at 3:50 pm (1950 GMT), as thousands of people lined the road into the city, which was decked out in giant posters of the Argentine pontiff. (credit: FILIPPO MONTEFORTE/AFP/Getty Images)
Pope Francis Arrives In Cuba
Pope Francis (L) is welcomed by Cuban President Raul Castro (2-R) upon landing at Havana's international airport on September 19, 2015 on the first leg of a high-profile trip that will also take him to the United States. (credit: FILIPPO MONTEFORTE/AFP/Getty Images)
