It is an old citadel located in the heart of Hail city above a mountain summit overviewing the city and to whom the name of the citadel was attributed to such name. The citadel was established in the era of the ALL-ALI family who took ruling Hail 1205H to 1790G, the citadel is rectangular in shape its dimensions reach 40 and 11 meters, and its area reaches round about 440 SM. And its walls were constructed of soft brick on stone bases, and the citadel is equipped with all what it needs from cleats and cannons defending the citadel and the city with spaces allocated to sleeping and other spaces for storage, praying area, Water Closets beside the only tower which is in the east of the citadel. The citadel is distinguished with its big wooden gates engraved with the area inscription and is distinguished with high tower which takes gradual conical shape for each side. The citadel was transformed in the modern ages to a location through which the crescent of Ramadan is observed and the IFTAR Cannon is fired before it turns into a tourist attraction at present time.