Pope Francis (C-L) and Ecumenical Patriarch of Constantinople Bartholomew I (C-R) pray over the Stone of Unction at the Church of the Holy Sepulchre in Jerusalem's Old City on May 25, 2014. Pope Francis joined Orthodox Patriarch Bartholomew I in an historic joint prayer for the Christian unity at Christianity's holiest site in Jerusalem. AFP PHOTO/POOL/ANDREW MEDICHINI