I always find this sort of thing interesting. You take an old picture and stand in exactly the same place and take a picture of it in the present day. I've blogged about it before here and this one showing my own efforts.

Just saw this pic of East River State Park in Brooklyn over at i'm not sayin, i'm just sayin

Two things to look for are....

1. The utility pole with the three metal tabs pointing south.

2. The distinctive scoop-end of the short concrete wall peeking out just to the right of the horse's head.