OLIN

My recent time in Philadelphia was actually a return after a long break: When my brother lived there in the 1970s and '80s, I would frequently extend business trips when I was in the area to spend time with him in what became one of my favorite cities. I haven't done much more than pass through since he moved away, but my daughter lives there now and has given me a great reason to renew my acquaintance with the place. Among the coolest things