Amazing work by both Rockstar and the dude who not only found these shots in-game but also in real NYC.
http://www.flickr.com/photos/matthewj/sets/72157604988911230

Some of my faves:

http://img185.imageshack.us/img185/9194/248135649764202087eeoes8.jpg

http://img185.imageshack.us/img185/5153/248135616730be2b41efofw9.jpg

http://img185.imageshack.us/img185/7536/24813558572daa66de0booy0.jpg

http://img185.imageshack.us/img185/7246/2481355139804f0ce78coqu1.jpg

http://img185.imageshack.us/img185/3400/2482166482e2ec9b2b64owy6.jpg

http://img520.imageshack.us/img520/9718/2481354531be93c25424olr3.jpg

http://img520.imageshack.us/img520/8553/2490049742f564dc7dcboos2.jpg

http://img520.imageshack.us/img520/6808/24892343294545be4bb9ojx6.jpg

http://img520.imageshack.us/img520/461/24892347838f4c9629edocj6.jpg

http://img520.imageshack.us/img520/3252/248923688521ca870bf2olr0.jpg

http://img520.imageshack.us/img520/8650/2489237997ede1da3350ojc4.jpg

http://img520.imageshack.us/img520/2977/2489237285fed192ea93oih8.jpg

http://img520.imageshack.us/img520/7203/2489238657aed077a34couz3.jpg

Pretty sweet. I am amazed at how much detail they put into everything.

Not too shabby

I live here in NYC and Rockstar really did a great job. There are so many places that I go around in the game and my jaw just drops.