Pope Leo celebrated the largest event yet of his nearly three-month tenure on Sunday, encouraging a crowd of more than a million Catholic young people gathered in a field on the outskirts of Rome to spread their faith.

Pope Leo leads a mass for more than one million young Catholics in the largest event of his papacy yet:::: Rome, Italy:: Rita Piendi, German pilgrim"It's just amazing to see just how big the world church is and how many people are here just believing in God and actually being on fire to see the Pope,