The most wonderful place for a visitor to go in Vermont is the Shelburne Museum. The creator of the museum, Mrs. Webb, collected quilts in pristine condition back in the 1950's when quilts weren't being collected. They are preserved and on display. There's usually a special display by an interesting quilter along with the museum quilts. The museum also features folk art, a village of historic homes, and lots more. Plan on two days.
Other things to see/do in Vermont: take a boat ride on Lake Champlain, ride the gondola in Stowe, visit Ben & Jerry's ice cream factory, hike just about anywhere, stroll through quaint Woodstock, and lots more. Enjoy your visit! (I've lived here over 35 years and used to be an innkeeper)