Along the same lines, Park in Staten Island and take the Staten Island ferry into the city. It's FREE and you cruise right past the Statue of Liberty into Battery Park. From there get on the subway to anywhere. Central Park and Museum of Natural History are a couple of my favorites. 911 memorial is well done and a must see one time. However, we have taken guests many times and it becomes too morbid for me after a few visits. I try to avoid Times Square at all costs, but it's also something your guests want to see, so almost always end up there.
