[15fan]

If you've only got 1 day, and the Yankees are at home, that's a must. If you're going to be in the Bronx for a ball game, the Bronx Zoo is right up there with the San Diego Zoo IMO. In fact, that's what I'd do - take care of the Bronx in one trip, and worry about Manhattan or the other boroughs another time.

If you want to take in Manhattan, The Metropolitan Museum of Art is killer. Unlike most other museums in the US, you can't see it all at once. Pick a couple of sections and spend some time in them. If you try to see "everything" at once, you'll burn too much time and short change yourself.

Haven't been to MoMA since it moved.

I'd die a happy man if I never set foot in Times Square again. Having said that, there's a 1/2 price ticket booth that sells day-of theater tickets. If you just want to see "a show" and not a specific show, that's a cheap alternative.

I'd skip Wall Street. Not much to see or do around there.

Edit: I think Central Park is a bigger deal for New Yorkers than it is for the rest of the country. If you live anywhere else, you've probably got plenty of parks, trees and greenspaces. The view of Central Park (as well as all of the other views) from the Empire State Building can be interesting. But by itself, Central Park doesn't do a whole lot for me. If you want to go for a run or rollerblade or something, then maybe. Otherwise, it's not that different from your city's main park.