Head back over the GWB and get on Rt. 80 west. Get off at the last exit in NJ at the Delaware Water Gap. Lots of nice scenery there. Make sure you get a local map at the ranger station. It'll save you a lot of time.

You might want to take Rt. 80 to the Garden State Parkway south. Get off at exit 117 and get on Rt 36 east. Go all the way to the end (about 15 miles) to Sandy Hook National Recreation Area. From the 'Hook on a clear day you can look to the north and see the Empire State Building in Midtown about twenty miles away, as well as lots of air traffic from LaGuardia and Kennedy airports.

NJ Turnpike to exit 14B/Liberty State Park. Simply the most amazing views of lower Manhattan and the Statue of Liberty you'll ever see.

Lots of tourist information at all three places, along with great photo possibilities, and they're all within an hour or so of the city.