Who are the 'Ad? Who are Thamud? Some swear they were giants who defied God because of their arrogance. The superstitious swear they are Djinn. Certain legends even describe them as one-armed, one-legged creatures from space. Others claim they never existed. Poets recall them fondly saying "if I had been the race of Ad and Iram". Cities of pillars never seen before in the land, homes carved into gigantic stones. These are Ad and Thamud. Ancient Arab civilizations that have equally captured the minds of the superstitious and the rational.