"Camel Country" along the Maine Sculpture Trail.  Photo by Alan Stubbs

Maine has a driving tour that leads to 34 outdoor sculptures strung out along 273 miles of its coastline; the Thoreau-Wabanaki Trail, which includes canoe routes that the author followed during trips to that state in the mid-1800s; and a Freedom Trail in Portland which leads to sites associated with the Underground Railroad and the anti-slavery movement of the 19th century.