Al-Ula is one of the cities of the Kingdom of Saudi Arabia, located in the northwest of the Kingdom, and administratively affiliated to the Emirate of Al-Madinah Al-Munawwarah Region, approximately 300 km north from the center of the Emirate, and the capital of Al-Ula Governorate. Human settlement is about 4,000 years old, and it is one of the most important tourist destinations in Saudi Arabia. Yaqut al-Hamawi mentioned al-Ula in his dictionary, with the inclusion of its first, and al-Qasr, which is the plural of al-Ula, and it is a name for a place on the side of Wadi al-Qura between it and the Levant, where the Prophet Muhammad, may God’s prayers and peace be upon him, came down on his way to the Battle of Tabuk. After that, they called it the bone mosque. And it was called Dadan in the past, and it is said that the reason for calling it Al-Ula is that it had two well-known springs with fresh water, namely Al-Mu’allaq and Ta’dal. The city of Al-Ula is located between two large mountains on a fertile valley, in which palm trees, citrus fruits and fruits are grown, and groundwater is available at close distances despite the great scarcity of rain. Followed by about 300 villages.