The best way to really see New York City is to walk. Just be sure to remember you need comfortable shoes!
Top right picture you see a Bebe billboard on Houston Street. Once you past Houston you are starting to get into the downtown area of New York City.
Center right picture you see is as far downtown as you can possibly get! The center picture is the Merchant Marines Memorial in Battery Park. In the very far distance is the Statue of Liberty. This is one of the most beautiful and thought provoking sites in the city.