This is Part 2 of my WTC model. Please read this all. I know its a pain, but it will pay off.
My original model was in one piece, but the Warehouse will not accept any model over the size of 10MB. My model was over 50MB, which is obviosly more than 10. Therefore, my model was put into "chunks" so that it could fit. Please download Part 1 first, then this one. Part 2 is the rest of the model, the towers and other buildings. This is just the top. When you download this one last, you can format it to Part 1.