Baalbek is a city located east of the Litani River in Lebanon's Beqaa Valley, about 67 km (42 mi) northeast of Beirut. It is the capital of Baalbek-Hermel Governorate. In 1998, Baalbek had a population of 82,608, mostly Shia Muslims, followed by Sunni Muslims and Christians. The town is known for its historical sites and tourist attractions, including several ancient Roman temples, a Great Mosque from the Umayyad period, and a Roman quarry site named Hajar al-Hibla.