Located only a few steps from the library in the Sibley House, a nineteenth-century Greek Revival home, the Westborough Historical Society offers exhibits and educational material about Westborough's history. Each of the three exhibit rooms in the Sibley House features collections of early furniture and household tools, paintings, maps, photographs and china from its respective period, and tell the story of Westborough's transformation from a farming village to a modern town. The mission of this nonprofit organization is to preserve, interpret and reseach Westborogh's history.