I was building a castle recently and when I finished it I looked at the outer wall, I felt as though I needed to add something. Some sort of structure that would make my castle more complex and interesting. Thats when I remembered the Minis Tirith scene from Return of the King and I thought a simple eye-catcher for a castle wall could be a Trebuchet, so I built one! Feel free to put this on your server or single player world, I would try altering it a bit if you'd like.