The Hashemite Kingdom of Jordan lies to the east of the River Jordan, between Israel and Saudi Arabia. Its territory is largely desert, however the population is based mainly in the cities. There is a short length of Red Sea coastline, while the Dead Sea forms part of the border with Israel. The country is a constitutional monarchy, enjoying one of the region’s best human rights records. Jordan has limited natural resources. A particular problem has always been in the supply of water. Nevertheless it is emerging as the regional business centre, with an economy dominated by the service sector. Tourism is set to expand with a number of destinations proving especially popular. Perhaps the main attraction is the amazing rock-hewn city of Petra, built in the sixth century BC by the Nabateans, who managed to create an artificial oasis by advanced techniques of irrigation and water management. Roman architecture can be seen at Umm Qais and Jerash. Jordan’s capital, Amman, is a thriving modern metropolis with shopping malls, nightlife and restaurants to rival any in the region. Jordan has an advanced healthcare system, and a recent development has been the rise of health tourism.