Arg-e Bam the citadel of Bam, is the largest adobe brick construction in the world (sand and straw clay bricks). It is located in Bam, a town in the province of Kerman in southeastern Iran. the area of the citadel of Bam is approximately 180,000 m², and is bounded by mighty walls 6–7 meters high and 1815 meters long. The Citadel shows two of the towers and for which it is known. There were 67 such towers scattered around the ancient city of Bam. It is mentioned by UNESCO as a World Heritage work and was badly damaged in a 2003 earthquake.
