Sturbridge Village and Mystic Seaport are fun if you have kids who are interested in (or should be interested in) history. There’s also the Shelburne Museum in Vermont. You can also see the houses of sculptors Daniel Chester French and Augustus St. Gaudens if that’s your thing. Art museums in Williamstown and contemporary art center in North Adams. The Lenox/Stockbridge/Lee area in the Berkshires is supposed to be nice as well. Edith Wharton’s estate in Lenox may or may not be open (money problems).
Near St Gaudens is the American Precision Museum, too.
It’s interesting for anyone interested in gun history.