Fun cool things to do in NYC tomorrow?

my cousin/good friend(15), my grandma(fav) and I (16) are all going to NYC tomorrow and i want to do something fun and different. We have all day and so far I came up with going to central park and maybe the met(not likely) I want to do something that not everyone knows about that will be fun and different. do you have any ideas?

thanks :)Fun cool things to do in NYC tomorrow?
king tut exhibit

hard rock cafe

jeckle and hide resteraunt

mars 2112Fun cool things to do in NYC tomorrow?
Here are over 50 attractions to choose from.

http://www.youtube.com/watch?v=UwkWGCHXq鈥?/a>

monroe muffler