Al Ula town in Saudi Arabia

The town of Al Ula in Saudi Arabia is a combination of different town patterns. Although Al Ula is known for the location of the UNESCO World Heritage site of Hegra, the town has architecture worth visiting and maintaining.
In this post I have defined three different urban areas: the old town, the farms and the new town houses in AlJadidah.
The old town is a concentration of mud brick houses around a fortress placed on top of a high rock. The area is being restored and access is denied to public so we can just get pictures from the perimeter.
Farm houses and houses inside the new town, AlJadidah, are constructed in stones and/or mud bricks, metal or wooden doors and more or less sophisticated windows from simple holes to two or three-layered closing systems.