The Tatooine settlement of Mos Espa where Anakin Skywalker was in the Phantom Menace is actually set in an area which is 40 kilometers from Tozeur, Tunisia, and is the home to folks who moved in after shooting wrapped 13+ years later. The Japanese website Rocket News 24 visited this spot:
Many scenes taking place in the city were shot in the middle of the desert in a region called Oung el Jemel. The set is still in good condition and is composed of 15-20 buildings, though some are only facades. While there is absolutely nothing around the set, we were surprised to find that some people had actually set up residence in some of the buildings. One person was even selling souvenirs! While most of the set pieces still seemed very sturdy, we were disappointed to find that all the machinery and gadgets were made from wood and plastic.