ALG-239,240. These natural arches are located on the site of Tissoukai on the vast Tassili National Park (Twice the area of Switzerland), wilaya of Illizi, Algeria. The main opening has an estimated span of 4.0 meters. The photos below shows a terrific shot through three arches. The third opening, outlined in the shadow at the background on both photo is the main opening of Tomb Arch .