I think what Philly could use is some sort of decorative lighting affixed to a few of the ground clutter towers put up back in the day. Most of the new towers have something going on up top, but hardly any old ones do. So, if like the twins got something done to them, then the skyline has poor balance, because basically all talls have lights, and basically all shorts don't.
So, maybe they can do something creative on the sides of a couple old moderist boxes, or maybe the PSFS building can have the top updated ro something...