[andrew_c_v]

What are the windmills used for? Is it for milling grains?

[ranDOMscripts]

I suspect many bread makers would immediately recognize the name of the province where the windmills are located.

https://en.wikipedia.org/wiki/Khorasan_wheat

[nick_g]

Yes, wheat into flour for naan. In this video[0] linked by twic you can see them in operation

0: https://www.youtube.com/watch?v=Uv3Pn2DFkDw