Because it restates the spirit of Hancock, this eight-story cylindrical tower and cube, first housing the Detroit and Northern's corporate headquarters, blends with its surroundings, despite its large size, though rather delicate scale. Allen (b. 1926) borrowed the upright shapes from mine structures and used native copper on the exterior and native wood for the interior. The mirrored glass exterior reflects the buildings and the life of the city where the institution that built it was founded in 1889.