Mada'in Saleh (Arabic: مدائن صالح, madāʼin Ṣāliḥ), also called Al-Hijr or Hegra, is an archaeological site located in the Al-Ula sector, within the Al Madinah Region of Saudi Arabia. A majority of the vestiges date from the Nabatean kingdom (1st century AD). The site constitutes the kingdom's southernmost and largest settlement after Petra, its capital. Traces of Lihyanite and Roman occupation before and after the Nabatean rule, respectively, can also be found.