Syria has a population of 17.8 million people (UN, 2003), of which 6 million are concentrated in the capital Damascus. A moderately large country (185,180 sq km or 72,150 sq miles), Syria is situated centrally within the Middle East region and has land borders with Turkey in the north, with Israel and Lebanon in the south, and with Iraq and Jordan in the east and south-east respectively. The population of Syria is predominately Arab (90%), with large minorities from other ethnic groups: Kurds, Armenians, Circassians and Turks. The official language is Arabic, but other tongues are widely spoken and include Kurdish, Armenian, Turkish, French and English. The Syrian Republic is officially secular, but in nonetheless greatly influenced by the majority religion of Islam (90% of the population, split between 74% Sunni Muslim and 16% other Muslim). There is a large Christian minority that amounts to about 10% of the population. Worth to visit is Aleppo, a large souk and ancient citadel with great views ,Deir-az-Zur, a desert town on the Euphrates River bank , Hama, waterwheels and a good base for exploring Krak des Chevaliers and Tartous an historical port city.