On Rio de Janeiro's Copacabana beach, nearly a million people await the first Latin American pope. Huge crowds gathered on Thursday (July 25) to join Pope Francis for the Catholic Church celebration of World Youth Day. As dusk fell, the arrival they had all been waiting for came from the air. World Youth Day is seen as an effort by the Vatican to galvanise young Catholics. Leading the celebrations, the pontiff thanked the crowd for their support.