Although out of service since 1995, this temple to commerce remains noteworthy for its unique combination of construction styles. (info from http://www.quaisduvieuxport.com/en/history/heritage.aspx)
Eating and having drinks alfresco in a fun and popular thing to do in Old Montreal in the summer. Restaurants throw tables and chairs out on the sidewalk, bars pop up at the Lachine locks and on rooftops. At the Place d'Armes square, famous for the Basilica of Notre Dame and the historic Bank of Montreal buiding there is a seasonal rooftop bar on the Hotel Place d'Armes that overlooks the historic square below.