This mélange of four carefully restored 19th- and 20th-century buildings is not only an architectural wonder, but also the symbolic headquarters of the Alcan aluminum concern. It integrates the old Berkeley Hotel and four houses, including the Atholstan House, a Québec historic monument. To the rear is an intriguing atrium with a pretty garden. Also on the property stands the Emmanuel Congregation Church, which belongs to the Salvation Army.