A bell tower rises above the Armenian section of the Old City in Aleppo. Syria's second-largest city became a sanctuary for Armenians and other Christians after the 1915 massacre of Armenians in Turkey. Here the Forty Martyrs Church and others are open to the public as museums, for worship, and to commemorate those killed during the genocide. "We are the sons of martyrs," said a Chaldean priest named Father Antonio, whose parents and grandparents escaped Turkey and fled to Aleppo.