What are some fun and different from the regular touristy things to do in NYC?

Im looking for something to do tomorrow in NYC if it isn't raining. I am originally from Hoboken (right across the Hudson from NYC) and have done the touristy things for years when I was younger. Ive been to all the major areas and would like to figure out something a little different to go to this time. Any suggestions?



Also...I dont know if there is anything like this in NYC especially on a Sunday, but I would love to go to some sort of flea market type place. Just something with random but yet cheapish things or trinkets to look at and maybe buy.What are some fun and different from the regular touristy things to do in NYC?
For starters, go see the NYC Waterfalls. If you haven't been to NYC lately, that's new. www.nycwaterfalls.org

Take a tour the gold vault in the NY Federal Reserve. http://www.newyorkfed.org/aboutthefed/vi鈥?/a>

Take an eating tour with Famous Fat Dave. www.famousfatdave.com

People Watching at street cafes in the Meatpacking District.

Go to some of the rooftop bars and lounges, like the Plunge Lounge in the Gansevoort hotel. www.hotelgansevoort.com

Free tour of Grand Central neighbourhood.

http://www.grandcentralpartnership.org/w鈥?/a>

Walking and food Tour of Greenwich Village

www.foodsofny.com



As for flea markets, here's a good listing, with descriptions and locations, from the New York Times - http://travel.nytimes.com/2008/03/30/tra鈥?/a>What are some fun and different from the regular touristy things to do in NYC?
you could go to Bubba Gump for dinner or something, ver entertaining place.What are some fun and different from the regular touristy things to do in NYC?
There are some great flea markets in the city during the summer.



Check out the Hell's Kitchen Flea Market. It's open every weekend in the summer from 9am-6pm



http://www.hellskitchenfleamarket.com/fl鈥?/a>





The same people that run this also have a market in Chelsea, which also has some really cool antiques (its on the same website). They actually offer a shuttle between the two.



It's a blast!!!! Have fun.