Hm ... I read _Anubis Gates_, and I didn't really love it, so I didn't hunt down additional Powers: after I read _Winter's Tale_ (or else! is the reaction I'm picking up from the f-list), I'll have to see which Powers are set in LA.

And, yes ... New York isn't one place either, but somehow all of the little delightful weirdnesses seem more accessible, possibly because they're right on top of one another: turn a corner, find a marvel. Here, I get the feeling that one either needs to be a hell of a lot more patient, a hell of a lot luckier, or possessed of really awesome gas mileage. :)