I think they got it right. The Book Tower is about 3 times as tall as the book building to the peak of the roof. I think it's spot on and that the new tower is just so huge it's hard to believe. Go over to skyscraperpage.com and type detroit into the diagram box
Also the current tower is 38 floors, if that was supposed to be 81 it should be about twice as tall and that is what it looks like to me.
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