A view of the elevated secret narrow 800-meter corridor, known as "Passetto", that runs atop the old Vatican walls between the Popes' Vatican palace and the Castel Sant'Angelo fortress, which was used during the Sack of Rome in 1527 by Pope Clement VII to escape and take refuge in the fortress, as it is reopened to the public just ahead of the Jubilee Year, an event expected to draw millions of visitors to the Eternal City, in Rome, Monday, Dec. 23, 2024. (AP Photo/Andrew Medichini)