This rendition of the Tower of Babel consists of a series of square platforms placed one on top of another and rotated by 45 degrees at each level. This fractal-like structure could be extended indefinitely and as such, can never be finished, just like its biblical counterpart. This also poses an interesting classification challenge: the model is at the same figurative (representing a building) and abstract (being a representation of a fractal, an abstract mathematical object).
The top-down view is a little distorted by the perspective which causes smaller squares in the center (which are closer to the camera) to appear relatively larger than they should. It would probably look better if I was able to take the picture from far away using a high zoom tele-lens.