Pope Francis (C) walks with priests as he arrives to visit Alexander Nevski Cathedral in Sofia on May 5, 2019. - Pope Francis urged Bulgarians to open their hearts and doors to refugees as he began a visit to the European Union's poorest country, where the main Orthodox Church snubbed holding joint prayers with the pontiff. Prime Minister Boyko Borisov met Francis at the airport, with the government welcoming how the visit has put the former communist country, which joined the EU in 2007, and the Balkans in the international spotlight. (Photo by YARA NARDI / POOL / AFP)