So many mourners lined up to see Pope Francis lying in state in a simple wooden coffin inside St. Peter’s Basilica that the Vatican kept the doors open all night due to higher-than-expected turnout, closing the basilica for just an hour Thursday morning for cleaning.

Pope Francis’ coffin was carried in a procession from his residency at the Vatican to St. Peter’s Square on Wednesday, where crowds waited under the warm Roman sun to say a goodbye to the pontiff.