I was watching discovery channel about the world trade centre in Bahrain an oil producing country, what made me like this building is the uniqueness, the future of our urban living, and greener environment for the future. This building can generate around 670 K.Watt of electricity or 1.1 GWh per year (wiki) , using 3 fan turbines, built within the design, that looks like sails into the wind. To move from fossil fuel into greener Earth, our future urban living will have to come up with a unique ideas just like this one. I actually drew it from scratch using sketchup referring to the picture shown , and made it in a small scale cause my first print was on Portabee GO then moved to the mendel, had to fix all the corners using solid inspector, printed the fans in a separate file. when printing careful with the top part, the heat of the extruder might melt the layer as it prints, I kept the minimal time between layers 25 seconds, slow right down to give the layer time to cool down still had little problem.