Al-Hijr Archaeological Site (Madâin Sâlih)

Hegra, also known as Mada’in Salih, is an archaeological site located in the area of Al-'Ula within Medina Province in the Hejaz region, Saudi Arabia. A majority of the remains date from the Nabataean Kingdom. The site constituted the kingdom's southernmost and second largest city after Petra, its capital city. Traces of Lihyanite and Roman occupation before and after the Nabatean rule, respectively, can also be found.

The archaeological site lies in an arid environment. The dry climate, the lack of resettlement after the site was abandoned, and the prevailing local beliefs about the locality have all led to the extraordinary state of preservation of Al-Hijr, providing an extensive picture of the Nabatean lifestyle. Thought to mark the southern extent of the Nabatean kingdom, Al-Hijr's oasis agriculture and extant wells exhibit the necessary adaptations made by the Nabateans in the given environment—its markedly distinct settlement is…

Source: Wikipedia