In Sandwich (on the Cape) the is the Hoxie house (the oldest existing house on the Cape) Dexter's Grist Mill; Heritage Plantation (they have a craft museum and an antique car museaum and an octagonal shaker barn, as well as a restored windmill - plus extensive collections of hybrid rhodedendrons and azealeas)
There is also the Sandwich Historical Society - with an extensive and newly renovated museum of Boston and Sandwich Glass company glass -

Also in Sandwich - the Wing Fort house, the boardwalk across the salt marsh, Greenbriar jelly kitchen, the thornton Burgess Museam