The Empire State Building, from the Top of the Rock. I found it hard to compose the photo so that the Empire State Building wasn't lost amongst the rest of the city. This was my favourite attempt, made better by the circling bird.
And, following that, the new World Trade Center, nearly complete. I like the perspective on this, with a little sun flare to draw attention to the flag at the bottom. It's a bit more triumphant than the photo above.
Obviously, Grand Central Station would have been greatly improved with a tripod. Though I would have been trampled in the stampede. I do like the motion blur from the people racing everywhere - this place was total chaos!