Enclosed by Bernini's magnificent colonnade, this square has the largest number of visitors in the world. Millions of tourists wait here either for the Pope's Sunday blessing or to enter the Basilica. More than a square, the colonnade gives it the atmosphere of a courtyard, inviting people to enter the church. The obelisk in the heart of the square has been standing there since 1586. When a new pope is being chosen, it is at St. Peter's Square that thousands gather keenly to see the black smoke turn white and find out who the next pope is going to be. During Christmas, a nativity scene and a Christmas tree are installed, and there is a remarkable atmosphere of celebration, with the majestic dome dominating the scene behind.