Although there are many large cities and towns in Turkey, Turkish Thrace and Anatolia are essentially rural. About 45 percent of the population lives in rural settlements. There are about 36,000 villages in Turkey. The houses in the villages vary from region to region. In Eastern Anatolia, the Aegean region, and in the Taurus Mountains, they are made of stone. In the Black Sea region, village houses are made of wood, and, on the Anatolian plateau, they are made of sun-dried bricks. A typical village house is two stories high and has a flat roof. The lower floor is used to shelter animals and for storage. Many villages in eastern Turkey lack running water, and some do not have electricity. The number of villagers who are migrating to urban areas continues to grow.