1575242 Colonnade of the ancient mosque (photo); (add.info.: 1900 colour photograph of the Colonnade of the ancient mosque, Baalbek, Lebanon. In 637 CE, the Muslim army under Abu Ubaid ibn al-Jarrah captured Baalbek after defeating the Byzantine army at Battle of Yarmouk. its fine mosque and fortress architecture, still extant, belonged to the reign of Sultan Qalawun.); Universal History Archive/UIG; out of copyright.