TOPSHOTS A general view shows Syria's 12th century Krak des Chevaliers castle in the Homs region, about 200 kms northwest of the capital Damascus, on August 19, 2013. Syria's famed Crusador castle, a UNESCO World Heritage site, was built between 1142 and 1271, according to UN organisation, and along with the adjoining Qalat Salah el-Din fortress, is considered one of the best preserved Crusader castles in existence. AFP PHOTO / LOUAI BESHARA