Harar, formerly written Harrar and known to its inhabitants as Gē, is a walled city in eastern Ethiopia. It was formerly the capital of Hararghe and now the capital of the modern Harari Region of Ethiopia. Located on a hilltop in the eastern extension of the Ethiopian Highlands, Harar has been a major commercial centre, linked by the trade routes with the rest of Ethiopia, the entire Horn of Africa, the Arabian Peninsula, and, through its ports, the outside world. Harar Jugol, the old walled city, was listed as a World Heritage Site in 2006 by UNESCO in recognition of its cultural heritage. It is sometimes known in Arabic as مدينة الأَوْلِيَاء "the City of Saints". According to UNESCO, it is "considered 'the fourth holy city' of Islam" with 110 mosques, three of which date from the 10th century and 102 shrines.