In 1909, businessman Chester Congdon constructed an impressive red brick structure along the shores of Lake Superior in Duluth,...

On the harbor of Duluth, Minnesota, in the heart of downtown, is a red door with a big white “R” that leads to the underworld of history....

A stone structure juts out of the hillside on the hill of Duluth, Minnesota. It doesn’t have fancy lights or anything flashy. Its vapid...