Damascus, in southwestern Syria, is widely believed to be the oldest continuously inhabited city in the world. Its historical importance has led to the Old City's designation as a World Heritage Site. Westerners are perhaps best familiar with Damascus in relation to the Apostle Paul, who was baptized by Ananias on Straight Street - which can still be seen today. Damascus also has a connection with John the Baptist: his head is believed to be in a chapel within the great Umayyad Mosque, one of the oldest mosques in the world. Damascus has always been an important religious center - the Umayyad Mosque stands on the site of a Roman temple and a Christian church - and it remains so today. Among its many religious places are numerous mosques, an important Shia shrine, several churches, and the National Museum with ancient religious artifacts.