Ralph Kilson, 54, greets the Pop-Up Pope, a cardboard cut-out of Pope Francis, in Wilmington, Delaware, September 19, 2015. In the run-up to the first visit of Pope Francis to the United States, a “joyful band of Catholics” takes a life-sized cardboard cut-out of the pope to the streets and bars of the city of Philadelphia. Their mission: to promote Catholicism and the Argentine pontiff's U.S. trip using street evangelism and a spirit of fun. The pope arrives in Washington on September 22, 2015. A public outdoor Mass in Philadelphia is expected to draw 1.5 million people, rounding off the six-day visit. (Photo by Mark Makela/Reuters)





Paul Tanner, the co-creator of the Pop-Up Pope (seated in a wheelchair behind a cardboard cut-out of Pope Francis), gives advice on accommodation for the homeless outside Westminster Presbyterian Church in Wilmington, Delaware, September 19, 2015. (Photo by Mark Makela/Reuters)





Christa Scalies (L), behind a cardboard cut-out of Pope Francis, and Paul Tanner, the creators of Pop-Up Pope, make their way along a street in Wilmington, Delaware, September 19, 2015. (Photo by Mark Makela/Reuters)





Christa Scalies, the co-creator of the Pop-Up Pope, holds a printed tweet from Pope Francis in Wilmington, Delaware, September 19, 2015. (Photo by Mark Makela/Reuters)





Christa Scalies, the co-creator of the Pop-Up Pope, carries a cardboard cut-out of Pope Francis into her car in Wilmington, Delaware, September 19, 2015. (Photo by Mark Makela/Reuters)





Alfred Yetta (L) and Kay Manning pose for a photo in front of a cardboard cut-out of Pope Francis, during an event organised by Christa Scalies, the co-creator of the Pop-Up Pope, in Fado Irish Pub & Restaurant in Philadelphia, Pennsylvania, September 16, 2015. (Photo by Mark Makela/Reuters)





Hugh Morgan, from Las Vegas, shows his Japanese inspired Virgin Mary tattoo, in front of a cardboard cut-out of Pope Francis, during an event organised by Christa Scalies, the co-creator of the Pop-Up Pope, in Fado Irish Pub & Restaurant in Philadelphia, Pennsylvania, September 16, 2015. (Photo by Mark Makela/Reuters)





Christa Scalies, (L) the co-creator of the Pop-Up Pope, poses for a photo next to a cardboard cut-out of Pope Francis (C) with Kaitlin Repella, 21, in Wilmington, Delaware, September 19, 2015. (Photo by Mark Makela/Reuters)





Soccer fans pose for a photo in front of a cardboard cut-out of Pope Francis, during an event organised by Christa Scalies, co-creator of the Pop-Up Pope, at Fado Irish Pub & Restaurant in Philadelphia, Pennsylvania, September 16, 2015. (Photo by Mark Makela/Reuters)





Christa Scalies, the co-creator of the Pop-Up Pope, can be seen behind a cardboard cut-out of Pope Francis as she walks through the city center in Philadelphia, Pennsylvania, September 16, 2015. (Photo by Mark Makela/Reuters)





Messages are seen attached to the back of a cardboard cut-out of Pope Francis in Philadelphia, Pennsylvania, September 16, 2015. (Photo by Mark Makela/Reuters)





Christa Scalies, co-creator of the Pop-Up Pope, carries a cardboard cut-out of Pope Francis, in Philadelphia, Pennsylvania, September 16, 2015. (Photo by Mark Makela/Reuters)





“Philly Jesus”, Michael Grant, hands his staff to a girl beside a cardboard cut-out of Pope Francis, at Love Park, in Philadelphia, Pennsylvania, September 16, 2015. (Photo by Mark Makela/Reuters)





Christa Scalies, the co-creator of the Pop-Up Pope, greets a homeless man in Philadelphia, Pennsylvania, September 16, 2015. (Photo by Mark Makela/Reuters)





Police officers watch Christa Scalies, (unseen) the co-creator of the Pop-Up Pope, greet pedestrians behind a cardboard cut-out of Pope Francis in Philadelphia, Pennsylvania, September 16, 2015. (Photo by Mark Makela/Reuters)