the stone walls are everywhere but maybe not much on the major roadways...if   you take Route 2 or 2A or Route 9 to western Mass. you will see quite a few-- very nice scenery. Central and western Massachusetts contain many   farms. The Pioneer Valley/Five College area is worth a visit (Northampton, Amherst, Hadley etc.). Northampton has lots of great shops and restaurants, and   beautiful old homes, once over the crowded Route 9 bridge you can go to Amherst (or bypass the strip mall of Route 9 and take Rte   47 to Hadley and stop in at Atkins Farms! Orchards and a nice food   shop at the base of the Notch, Holyoke range, then take 116 into Amherst) which has a lovely town   common, and Amherst College campus is lovely (I used to walk there every day). The Black Sheep bakery is worth a visit; great croissants and breads.

Have a great trip!