The Pope has visited the iconic Blue Mosque in Istanbul on the second day of his trip to Turkey. It's a symbolically important visit aimed at building bridges between Islam and christians in the Middle East. Al Jazeera's Bernard Smith reports from Istanbul. Subscribe to our channel http://bit.ly/AJSubscribe Follow us on Twitter https://twitter.com/AJEnglish Find us on Facebook https://www.facebook.com/aljazeera Check our website: http://www.aljazeera.com/