While in New york City, you should visit the World Trade Center.  Here you will be able to see the National September 11 Memorial and 1WTC(formerly called The Freedom Tower). 1WTC is expected to be completed in  2013.

Address:

The World Trade Center is located near the intersections of Vessey and West St. – Liberty and Church St.,New york, NY 10038

Subway:
Take the 1 train to Rector St. stop.
Take the R train To Cortlandt St. stop.
Take the E train to World Trade Center stop.
Take the 2,3,4,5,A,C,M,J,Z trains to Fulton St. stop.

To view train stops, click on the train below: