Hegra, also known as Mada'in Salih, is the main tourist attraction in Al Ula. The archaeological site is spread over an area of about 4km x 5km in the desert and is located about 20km north of the city of Al Ula. To access the site, tourists have to book a two hours tour on the Experience Al Ula website. During these two hours visitors are brought to four locations in the archaeological area, where they see mainly tombs carved in the rock.
What is visible today are the ruins of the ancient Nabatean city, which was set up in the 1st century AD. Hegra prospered for two centuries as a trade centre, then declined.