Pope Francis (L) waves from his car as he leaves following a visit to the Vrazhdebna refugee camp, on the outskirts of the Bulgarian capital Sofia, on May 6, 2019. - Pope Francis urged Bulgarians to open their hearts and doors to refugees during a visit to the European Union's poorest country, where the main Orthodox Church snubbed holding joint prayers with the pontiff. (Photo by Andreas SOLARO / AFP)