Pope Francis delivered a plea for peace in a world torn by conflict in his 2024 Christmas Day "Urbi et Orbi" ("To the City and the World") address. It came as Christmas marked the start of the 2025 Holy Year celebration that is expected to bring some 32 million Catholic faithful to Rome. "I invite every individual, and all people of all nations ... to become pilgrims of hope, to silence the sounds of arms and overcome divisions," the pontiff said, speaking from the balcony of St. Peter's Basilica to a crowd of thousands of people in the square below. He urged negotiations between Ukraine and Russia to "achieve a just and lasting peace" and end the war that has killed tens of thousands since Moscow's full-scale invasion more than two years ago. The conflict did not pause for the holiday, as Russia carried out what it called a "massive strike" targeting energy facilities in Ukraine on Christmas Day. Pope Francis also renewed his call for a ceasefire in the Israel-Hamas war, calling the humanitarian crisis in Gaza "extremely grave," and urged the release of the remaining Israeli hostages held by Hamas. Pilgrims lined up early Wednesday to walk through the great Holy Door at the entrance of St. Peter's Basilica for Christmas observances. On Christmas Eve, Pope Francis knocked on the door and was the first to enter through it, inaugurating the 2025 Jubilee that he dedicated to hope. Traversing the Holy Door is one way that the faithful can obtain indulgences, or forgiveness for sins during a Jubilee, a once-every-quarter-century tradition that dates from 1300. Visitors submitted to security controls before entering the Holy Door, amid new security fears following a deadly Christmas market attack in Germany. Many paused to touch the door as they passed and made the sign of the cross upon entering the basilica dedicated to St. Peter, founder of the Roman Catholic Church. Inside, the beauty of a newly restored St. Peter's Basilica was revealed after extensive restoration work was undertaken in preparation for the Jubilee Year. One of the most significant restorations is of Bernini's Baldachin, a canopy that sits atop the tomb of St. Peter, removing centuries of grime to showcase its gleaming gold finish. Also restored was the Chair of St. Peter, an important symbol of papal authority dating back to 875 AD. CBS News correspondent Chis Livesay got an inside look at the restoration work at St. Peter's, which you can watch in the video below.