Medina is known as an important city in the religion of Islam along with Mecca and Jerusalem. For this reason, some of the main sites in Medina are connected to religion and hold value for people around the world. The historic Al Masjid an Nabawi, built in 622, is one of the largest mosques in the world, and the Quba mosque is believed to be the oldest in the world. Along with a rich religious heritage, Medina is also home to the Al-Medina Museum and Hejaz Railway Museum. While the economy has l

argely revolved around agriculture and tourism in the past, the founding of various universities and the planned Knowledge Economic City promise to increase development and industry in the area.