Pope Francis passes the main entrance with the lettering "Arbeit Macht Frei" (Work Sets You Free) at the former Nazi German Auschwitz-Birkenau death camp on July 29, 2016 in Oswiecim as part of his visit to the World Youth Days (WYD).
Pope Francis is in Poland for an international Catholic youth festival with a mission to encourage openness to migrants. / AFP / Filippo MONTEFORTE (Photo credit should read FILIPPO MONTEFORTE/AFP/Getty Images)
