Harar which is the fourth holy city of Islam, sitting on a plateau 2,000 metres above sea level. The city has 82 mosques within its 16th-century walls. Among the tiny alleyways are markets, coffee shops and more than a 100 shrines. You will feel like no one else has stumbled upon it since the French poet Arthur Rimbaud lived here as a coffee trader in the 1880s. The flat-roofed houses of the old city are made of stone and plaster and usually consist of one large room with large stone steps serving as chairs, tables and beds.