So many people lined up to see Pope Francis lying in state at St. Peter’s Basilica that the Vatican kept the doors open all night, closing for just one hour from 6 a.m. until 7 a.m.

Rome is in mourning as the world says goodbye to Pope Francis, a transformative leader and spiritual guide to more than a billion Catholics. His death marks the end of an era and sets in motion a series of historic religious events that will impact travel to Rome and Vatican City in the coming weeks.