As the world mourns Pope Francis, attention now turns to Vatican City's ancient traditions. The black and white smoke signals from the Sistine Chapel’s chimney will once again guide millions awaiting news of the next pope.

Francis did away with that sort of viewing. Instead, a procession brought his coffin on Wednesday directly to St. Peter’s Basilica, where a public viewing is taking place. Francis’ body, dressed in papal vestments, his head covered with a white bishop’s miter, is lying in state to allow tens of thousands of mourners to bid farewell.