Windmills are one of those really old inventions that were a huge improvement for society and it can also be a huge improvement to your Minecraft build.
If your build is looking like an Old European city then having a windmill is a must, since it was the time when they became popular.
Also if you are building a farm you should definitely have one, depends on the aesthetics you are going for you can make it more modern looking than the one we are sharing here.
Regardless, hope this windmill gives you the inspiration to keep adding to your build.
How do I make this? Is there a tutorial?