idk but

mention of one here, not open yet though...
The Newport Festivals Museum

... the old Museum of Yachting … which is now the Newport Festivals Museum, home of the Museum Stage during the festival. “The intention is to turn this into a museum that will celebrate both festivals from the beginning to the present,” explained Tobin. “It’s in the planning stages and still a couple of years off. There will be old photographs and memorabilia, but we’ll also still use it as a performance space.”
http://whatsupnewp.com/folk-festival-set-to-begin-next-week-behind-the-scenes-at-fort-adams/ 

& it might be checking this older thread for other links
https://mudcat.org/thread.cfm?threadid=157628#3721650