The complex of temples at Baalbek is located at the foot of the south-west slope of Anti-Lebanon, bordering the fertile plain of the Bekaa at an altitude of 1150 m. The city of Baalbek reached its apogee during Roman times. Its colossal constructions built over a period of more than two centuries, make it one of the most famous sanctuaries of the Roman world and a model of Imperial Roman architecture. Pilgrims thronged to the sanctuary to venerate the three deities, known under the name of the Romanized Triad of Heliopolis, an essentially Phoenician cult (Jupiter, Venus and Bacchus).

The Mosque of sayeda Khawla in Baalbek, Lebanon is erected on the site where Sayyida Khawla, the daughter of Imam al-Hussein, the grandson of the Prophet Muhammad, is believed to have been buried. People of Baalbek believe that when the caravan of captives of Karbala passed Baalbek, The daughter of Imam al-Hussein, called Khawla passed away and was buried there.