Another model created in Google SketchUp and exported to Trainz with RubyTMIX. Pitstone Windmill, owned and managed by the National Trust, was built in 1627 and is possibly the oldest windmill in the British Isles. The design is called a post-mill, which means that the top wooden section will rotate as the direction of the wind changes (although 20th Century adjustments now prevent this from happening). Model made by walker44.