Turkey's President Erdogan receives Pope Francis in Ankara [Getty Images]

ANKARA, TURKEY - NOVEMBER 28: Turkish military cavalry escort the car of Pope Francis as he arrives to Turkey's Presidential Palace ahead of official welcoming ceremony held by Turkish President Recep Tayyip Erdogan in Ankara, Turkey on November 28, 2014. (Photo by Mehmet Ali Ozcan/Anadolu Agency/Getty Images)

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