In this photo taken Tuesday, Feb. 26, 2013, fuel barrels are stored in front of Roman and Byzantine mosaics inside the 17th-century caravanserai, which presently serves as a headquarters for the Free Syrian Army, in Maaret al-Numan, Idlib province, Syria. (AP Photo/Hussein Malla)
In this photo taken Tuesday, Feb. 26, 2013, fuel barrels are stored in front of Roman and Byzantine mosaics inside the 17th-century caravanserai, which presently serves as a headquarters for the Free Syrian Army, in Maaret al-Numan, Idlib province, Syria. (AP Photo/Hussein Malla)