A stone warehouse

If someone asks me, "What's a special feature in your town?", I'd say, "It's the stone warehouses." Walking around in my town, you can easily find them here and there.
Actually, their existence is not well recognized, because they're too ordinary in my town and they're in private use. But once you realize the variety of their structure and design, you will enjoy them like art pieces.
Yes, I can say they're kind of art.