One of the National Park Service's 400 parks, and the only one dedicated to American painting, Weir Farm was officially declared a national historic site by Congress in 1990. It highlights the home and place of inspiration for painter J. Alden Weir. Weir, who acquired the 153 acre farm in 1882, responded to the natural landscape with impressionist paintings that depicted stones, woodlands and meadows, beginning a tradition that other artists, such as Mahonri Young and Sperry Andrews, would later emulate. The Land of Nod, as the site has been called, has a visitor center, tours, and en plein air activities for kids.