Mada'in Saleh, or the city of Hijr, is one of the most important archaeological sites in the Al-Ula Governorate and in the Kingdom in general. Mada'in Saleh was registered as the first site in Saudi Arabia to join the list of World Heritage sites, which represents a recognition of the global cultural value, safety of actions and procedures that have been taken in dealing with this site. Mada'in Saleh is located 22 km from Al-Ula Governorate, and it occupies a strategic location on the road that connects southern Arabia with Mesopotamia, the Levant and Egypt. Mada'in Saleh is rich in many monuments and archaeological buildings, including the Palace of Sanayeh, Mount Ethleb, the Girl's Palace and the unique palace