Aleppo’s Umayyad mosque pictured on March 12, 2009, top, and on December 13, 2016. Omar Sanadiki / Reuters
The Old City of Aleppo on November 24, 2008, top, and on December 13, 2016. Omar Sanadiki / Reuters
Aleppo’s Umayyad mosque on March 12, 2009, top, and on December 13, 2016. Omar Sanadiki / Reuters
The Al Sheebani school courtyard before it was damaged on June 6, 2009, top, and on December 17, 2016. Omar Sanadiki / Reuters
Al Zarab souq pictured on November 24, 2008, top, and on December 13, 2016. Omar Sanadiki / Reuters
The Al Sheebani school building on May 14, 2008, top, and on December 17, 2016. Omar Sanadiki / Reuters
Shahba Mall, one of the largest commercial shopping centres in Syria, before it was damaged on December 12, 2009, left, and on October 16, 2014. Khalil Ashawi (left) / Abdalrhman Ismail / Reuters
Aleppo’s historic citadel before it was damaged on August 9, 2010, top, and after on December 13, 2016. Sandra Auger (top) / Omar Sanadiki / Reuters
Hamam El Nahasin, in the Old City before it was damaged on October 6, 2010, top, and after on December 17, 2016. Khalil Ashawi (top) / Omar Sanadiki / Reuters