The Roman Catholic Church is having its World Youth Day in Madrid, an event geared toward young people and held in celebration of the Catholic faith. These events are held locally every year and internationally every two to three years. They attract hundreds of thousands of youth from all over the globe and they’ve been credited with helping young people get more involved in the church. This marks the world’s largest gathering of young people. This year is no exception. As many as 1.5 million people are expected for Saturday’s vigil and Sunday’s Papal Mass outside the city.