Not many people venture to the back side of Monreale Cathedral, but more should. The back of the apse, photographed, is a work of art unto itself. The fascinating stone work incorporates designs of inlaid lava stone, a technique called intarsias, which is a signature element of Arab-Norman architecture. 

If you have a few minutes during your visit to the medieval town south of Palermo, head to Via delle Absidi where you’ll see this other treasure offered by this magnificent UNESCO recognized landmark.