Officially known as the Kingdom of Saudi Arabia, is a country in Western Asia constituting the bulk of the Arabian Peninsula. There is evidence that human habitation in the Arabian Peninsula dates back to about 125,000 years ago. It is now believed that the first modern humans to spread east across Asia left Africa about 75,000 years ago across the Bab-el-Mandeb connecting the Horn of Africa and Arabia.
Al Hijr site (Madaen Saleh), was the first ever archeological site in Saudi Arabia to join the UNESCO's World Heritage List. Al Hijr, "MADA’EN SALEH" is located 22 kilometers to the north of Al Ula municipality in the Madina Al Munawara province, in the Kingdom of Saudi Arabia.