Must-Dos in New York

What would you consider the Must-Dos in New York?
For me... I would say the following:
- Visit the Empire State Building
- A walk in Central Park
- Shopping along 5th Avenue
- See the Statue of Liberty
- Lunch at the Plaza Hotel
- Watch the New York Yankees Play

I did all of the above except the last when I was in New York last year. I think the next time I visit New York, I will have to purchase the New York Yankees tickets way in advance of my travel, and watch them play. Only then, I can proclaim that I have done all the Must-Dos in NYC!
:-D