As I mentioned before, I used Yazd as a base to do some day trips around the area. One of the places I went to was the village of Kharanaq. This is a very old village, about more than 1000 years old. It is virtually a ghost town, with a very small population.
As you can see, this is a crumbling village. Some of the buildings were restored, and when we were walking around, there were still buildings that were locked and looked like at least there were people living in them. But as with the Old Town of Yazd, pretty much everything was made with adobe, and so buildings were not detached and single-standing. Everything just blended together, walls becoming fences, and one building fusing with the next. Some of the buildings were crumbling and we could take a peek inside, and some were closed.
Believe it or not, if you want to stay overnight, it is possible. I just am not sure whether I would want to do that.