The ship in my gallery is a quaternion fractal, I didn't actually model that. All I did for that was to plug in a formula. The buildings are a nice idea, working as a CAD designer I was trained to think small, buildings are large, didn't think of that. I've thought of furniture, but I have no imagination for it. Give me a couple weeks and I'll have a few things I guarantee. Probably post them in the bryce forum since thats what I use for rendering.