A far-reaching examination of an archeological site in Saudi Arabia reveals new insight into mustatils — stone landmarks from the Late Neolithic time frame remembered to have been utilized for ceremonial purposes. Melissa Kennedy of the College of Western Australia, Perth, and associates, related to the Imperial Commission for Al-Ula, present these discoveries in the open-access journal PLOS ONE on Walk 15, 2023. Worked around a long time ago, mustatils are rectangular, low-walled, stone designs that reach from 20 to 600 meters long. Analysts originally found them during the 1970s, and more than 1,600 mustatils have now been found, essentially