The architecture of Montreal, Quebec, Canada is characterized by the juxtaposition of the old and the new and a wide variety of architectural styles, the legacy of two successive colonizations by the French, the British, and the close presence of the architecture of the United States to the south. Much like Quebec City, the city of Montreal had fortifications, but they were destroyed between 1804 and 1817.
For over a century and a half, Montreal was the industrial and financial centre of Canada. The variety of buildings included factories, elevators, warehouses, mills, and refineries which today provide a legacy of historic and architectural interest, especially in the downtown area and in Old Montreal. Many historical buildings in Old Montreal still in their original form, notably the impressive 19th century headquarters of all major Canadian banks on Saint Jacques Street (formerly known as Saint James Street).
From the Art Deco period, Montreal offers a handful of notable examples. Ernest Cormier's Université de Montréal main building located on the northern side of Mount Royal and the Aldred Building at Place d'Armes, an historic square in Old Montreal.