Aye, good ideas, everyone... Version 2 of this tower will pretty much incorporate everything we've discussed, I'll most likely scale up the tower itself and use the windows only on the top two floors or so. I'm gonna have to sit and draw (yeah, I know, paper sucks...) some ideas for the entrance. Sometimes even Rhino limits my imagination, considering the tools at hand do have some limitations. Flak, what you're seeing through the windows is the far walls inside, as opposed to being a wall right behind the window-glass. In a final version I'll duplicate and offset the glass objects and replace them with various interior textures and photos, to give it some more realism if possible... But from a modeling aspect, I see where you'd be concerned. The tower is indeed hollow, as of now... Thanks for your ideas and input, my friends!