With its triple windtower and central fountain pool, the Mostafi House is Boshrooyeh's best-preserved historic building and an icon of sorts for the town. However, repairs remain ongoing and the plans to turn it into a coffeeshop are still a ways off, so to get in (for now) you'll need to ask the kind folks at Miras Ferhangi, almost next door, to open it up for you.
Mostafi House
Southeastern Iran