People greets Pope Francis as he leaves Istanbul's Holy Spirit Cathedral on November 29, 2014 in Istanbul. The pope held talks with Turkish President Recep Tayyip Erdogan in Ankara on November 28, calling for dialogue between faiths to end the Islamist extremism plaguing the Middle East. The pope's visit is seen as a crucial test of his ability to build bridges between faiths amid the rampage by Islamic State (IS) jihadists in Iraq and Syria and concerns over the persecution of Christian minorities in the Middle East. AFP PHOTO/OZAN KOSE