Thousands of young Catholics flocked to the Tor Vergata field in the suburbs of Rome, a night vigil and mass celebrated by Pope Leo Xiv.
The first American pope arrived by helicopter and boarded the open Popemobile, where the pilgrims cheered and waved flags to welcome him.
Over the past week, young Catholics from around the world have arrived in Rome for a special Jubilee celebration, a holy year where 32 million people are expected to land a centuries-old pilgrimage in the Vatican.