It is a mysterious archaeological site in the Al-Jawf region of Saudi Arabia, consisting of clusters of stone pillars dating back to the fourth millennium BC. It was named for the resemblance of "rajajil" or standing men when viewed from a distance. The site is shrouded in mystery regarding its original purpose, with scholars speculating that it may have been a religious center, an astronomical observatory, a tombstone, or even a marker for ancient trade routes.