Twisting and turning for 2,000 feet, a wavy city wall—if, indeed, that was its ancient function—encircles the site of el-Ahwat in this aerial photo. Adam Zertal has linked the wall to the nuraghi (domed stone structures, often wavy in design) found on Sardinia. However, fellow archaeologist Israel Finkelstein contests this, declaring that the el-Ahwat “city wall” is in fact a Late Roman-era agricultural complex.