A glance at current and past papal visits to Cuba

Francis will celebrate Mass in Havana's main square, the Plaza of the Revolution, on Sunday morning and will visit priests, members of religious orders and seminarians at the Havana Cathedral that late afternoon.

The president greeted Benedict upon his arrival and attended the papal Mass held in Santiago to mark the 400th anniversary of the discovery of the image of the Virgin of Charity of Cobre, Cuba's patron saint.

The pope called on Cubans to "reinvigorate your faith . that you may strive to build a renewed and open society, a better society, one more worthy of humanity" when he was in Santiago, the hometown of the Castro brothers.

A huge image of the Sacred Heart of Jesus was erected on the side of the plaza's National Library to serve as a backdrop to the temporary papal altar.