Ok - uninformed question time. What prevents someone that is building a skyscraper from throwing ornamentation on the top of their building? For example, 1 Dalton - why the flat roof? Why not a spire of some kind? Is it particularly cost-prohibitive? Is it more difficult to get the building approved? And what if in the middle of building it they were like "you know what? I think this thing needs a spire!"? Would it just require a project change notification? I mean, that example in particular is a very nice looking building - up close. From a distance - from a skyline persepective - it's rather dull. From a distance you can't see the elegant curved edges or the ridges. It's just going to look like a slender box. So my question is, for this and many other buildings is - why not?