250 52nd Street is the location of a disused warehouse in Gotham City.
Later, Harvey/Two-Face kept James Gordon's family here to make him apologize for Rachel's death. The crazed man mercilessly aimed his handgun to Gordon's son's head and as he flipped his double-headed coin, which was burned on the other side, to decide the boy's fate. Batman rushed Harvey, knocking him off the building and onto the ground below, killing him.
Behind the scenes
The name "250 52nd street" is very possible to be reflected upon the number "2" and "50/50" which are used together. The street is pronounced "two-fifty-fifty-second street". This is an interesting coincidence, as Harvey Dent becomes Two-Face after the events here.