Where is the place you absolutely have to visit in NYC?

Question

I live in NYC now and have a few weeks to kill before school starts this fall. I just want to know where to go (the cheaper the better, I don't have that much money to spend) that I absolutely should NOT miss. (Or places to see and have my pics taken! hehe.)

Btw, I've already been to the ff. places:

Liberty and Ellis Island

Rockefeller Center (But not the Observation Deck)

St. Patrick's Cathedral

WTC Site

Times Square

Broadway (Haven't seen a show though)

Battery Park

Grand Central Station

South Street Seaport

Central Park (Just a small part of it though)

FAO Schwartz

Toys R' Us

NBA Store

Macy's

Radio City (Outside)

It would be a great help. Thanks!

Answer 1

ground zero to pay tribute to all who loss there lives

Answer 2

I would say Madame Tussaud's Wax Museum.  My friend just came back from from NYC and she got a TON of great pictures just from that one spot.  

Answer 3

Liberty and Ellis Island and ofcourse the malls

Answer 4

Chinatown, Little Italy, the Central Park Zoo (very cheap), and I'm sure you've been there, but you didn't mention it... the Empire State Building observation deck.

Go see a baseball game at your choice of mets or yankees. Get some cheap nosebleed seats and check out a game before either stadium is demolished for the new ones.