I don't like the windows in this building, though I realize that other parts of the unit have wider windows. I prefer this:
http://www.215chrystie.com/
Let the site scroll through to interior shots on its own. The views in this 500 Walnut shot would be so much more striking if the windows were double the width, i.e. every other pane eliminated. So that's it closer to a square instead of narrower rectangles of windows. And I think such fenestration is definitely possible. It's not outside the realm of being feasible. The ones in 215 Chrystie look to be about double or at least 1.75 the width of these.