Visit Boston [1], with a road trip to Concord [2] or Plymouth [3] for the historic sights.
Add a trip to Cape Cod [4] or hike the White Mountains [5] of New Hampshire.
Add the back roads of Vermont [6] or the culture of Providence [7] and Newport [8].
Add Mystic [9], New Haven [10], and the Berkshires [11]; or a drive up the rocky Maine [12] coast.
Links:
[1] http://www.moon.com/destinations/new-england/massachusetts/boston
[2] http://www.moon.com/destinations/new-england/massachusetts/eastern-massachusetts/west-boston/concord
[3] http://www.moon.com/destinations/new-england/massachusetts/eastern-massachusetts/south-boston/plymouth
[4] http://www.moon.com/destinations/new-england/massachusetts/cape-cod
[5] http://www.moon.com/destinations/new-england/new-hampshire/white-mountains
[6] http://www.moon.com/destinations/new-england/vermont
[7] http://www.moon.com/destinations/new-england/rhode-island/greater-providence/providence
[8] http://www.moon.com/destinations/new-england/rhode-island/newport-and-south-county/newport-and-vicinity/newport
[9] http://www.moon.com/destinations/new-england/connecticut/eastern-connecticut/the-southeast-coast/mystic
[10] http://www.moon.com/destinations/new-england/connecticut/western-connecticut/greater-new-haven/new-haven
[11] http://www.moon.com/destinations/new-england/massachusetts/western-massachusetts/northern-berkshires
[12] http://www.moon.com/destinations/new-england/maine