The monastery is Petra's second-largest building after Cazny, a shrine or royal tomb carved by Nahatians along the mountain, used as a monastery in Rome and Byzantine times, with a front width of 50 meters, a height of 45 meters, and eight huge stone pillars in front, the largest stone chiselled building in Petra. Another steep mountain road in the highlands leads to the Attaf ridge, with two obelisks on a man-made highland.