Amid security worries, millions of pilgrims are expected to descend on Rome for a Jubilee Year of major Catholic celebrations throughout 2025. Here are the highlights.

Pope Francis made a visit on Thursday to one of the largest prison complexes in Italy, opening a special "Holy Door" for the 2025 Catholic Holy Year, in what the Vatican said was the first such action by a Catholic pontiff.

Pope Francis inaugurated his Holy Year at Rome’s main prison on Thursday, bringing a message of hope to inmates and involving them in the Catholic Church’s once every quarter-century celebration that is expected to bring about 32 million pilgrims to Rome.

As the Pope left the Rebibbia prison, he stopped to greet the 300 inmates and staff who had waited outside of the crowded chapel on the cold December morning.

Opening the Holy Doors of St. Peter’s Basilica on Christmas Eve, Pope Francis inaugurates a jubilee year expected to draw 32 million visitors to Rome.

"I wanted all of us, inside or out, to have an opportunity to throw open the doors of our hearts and understand that hope does not disappoint."

Pope Francis kicked off the Jubilee this week, marking the start of the Holy Year in Italy as 32 million pilgrims are expected to travel to Rome this year.