The Madinah Region ( Al-Madīnah al-Munawarah) is a region of Saudi Arabia, located on the country's west side, along the Red Sea coast. It has an area of 151,990 km² and a population of 1,777,973 (2010 Census), subdivided into seven governorates (muḥafaẓat): The regional capital is Medina, the second holiest city in Islam. Other cities in the province include Yanbu' al Bahr and Badr Hunayn. It also contains Mada'in Saleh, a pre-Islamic UNESCO World Heritage Site.