An elegant way to store wheat and a perfect addition to a rural area.
With harvesting machines you can take a lot of wheat in a short time. If you get more wheat than you spend, you get a surplus of wheat. And at some point you have too much wheat to just put it in a chest. If you don't want to have lots of boxes labeled "Wheat 1", "Wheat 2" and "Wheat 3" in your storeroom/warehouse/storage cellar and you don't want to store blocks of wheat in boxes, you might consider building a silo. Would also fit well thematically with the harvester or alternatively a farm, town centre, medieval village or just in the countryside as a practical decorative item. Anyone can create their idea of a silo however they like, there are thousands of ways to choose materials, shapes, sizes, interiors and environments so no two silos are the same (unless you recreate it).
From the inside: