Rte 100 through VT is really scenic. Anywhere in the White Mountains, of course. And I'll second the suggestion of Gloucester and Salem when the weather is good.

This was one of my favorite routes when I used to ride. It's Rt 113a from Center Sandwich to Tamworth and around to Chocorua Lake. At the 90 degree bend I have circled, there is a very picturesque church and there are any number of good spots to shoot it from. Bring it up in Google maps and check out the church on Street View.

http://bimmermail.com/rt113a.JPG