Siege Tower The Zvezda Siege Tower is a terrific value for money model, at around £10 (US$20), you can't really go wrong, especially when compared to the price charged for a plastic tower from a certain high street (work) shop... The model is not complicated to make and is basically a box on wheels! The only modification made to the model was to fix larger wheels. This raised the height of the tower by a few millimeters and helped the drawbridge height against castle walls. Zvezda Siege Tower