Carefully, one building at a time. :D It really depends on the scene you're creating. The fastest way is to use some basic shapes and map some textures onto them. It will render fast and doesn't create a huge file. However, if your camera is going to be close to several buildings, you'll probably need to model some details. Modeling the whole city would be a waste of time because the camera won't "see" much of the detail you model the further away from the camera you get. Of course there are actually quite a few ways to answer this question, but here's a start. Mark