At the end of June we will be driving from Cincinnati, Ohio to Bar Harbor, Maine. Along the way we would like to see NYC. We would not be arriving until Sunday evening, probably after 6pm. We have 3 young children and don't want to attempt public transportation with them. What will traffic be like on a Sunday evening to drive around the city to show them (just by drive by, not stopping) things like the Empire State Building, Times Square, Statue of Liberty, etc.? Also, can the 9/11 Memorial be seen from the street or do you have to enter? Thanks!