The historic 17th century Barn House in Chilmark, home to an avant-garde communal colony of Vineyard artists, writers and intellectuals, has been added to the National Register of Historic Places, the Massachusetts Historical Commission has announced. The compound is the first location in Chilmark to be named to the national historic register, and joins other Vineyard landmarks such as the Gay Head Cliffs, the village of Edgartown, the Flying Horses Carousel in Oak Bluffs and the five Island lighthouses.