Did you know that the Vatican is a country--the smallest in the world? Find out the amazing history of the headquarters of the Catholic Church. It's time to elect a new pope. Hundreds of thousands of people gather in front of St. Peter's Basilica to learn who will be the next leader of the Catholic Church. A white puff of smoke from a chimney signals the cardinals--the "princes" of the church--have elected one of their own who...