Geometries

One more place I didn't quite get around to -- Rayen, an old citadel in the desert near Kerman.

Parts of it are over 1000 years old, but it was still inhabited until about 150 years ago. (There was a much larger citadel at Bam, but it was destroyed in the massive earthquake of 2003.) Some of it is obviously reconstruction, but there are alleys between old mud brick walls that are hundreds of years old.