RE: What do you call a windmill without sails?

Yes, it is true that this type of structure has a kind of very strong striking aura. They remind me a lot of the movie The Bridges of Madison. An architecture that bewitches the senses and enhances all the splendor and beauty of nature.

Nice job of photography dear @darrenflinders you have an excellent photographic eye.... I hope you put up the missing sails soon and the mills regain 100% of their enchanting glow.