As a minor basilica, it serves as the spiritual center and the seat of the Roman Catholic archdiocese of Montreal. This grand cathedral ranks as the third largest church in Quebec, with only Saint Joseph’s Oratory and the Basilica of Sainte-Anne-de-Beaupré surpassing its magnificence.

The remarkable dimensions of this architectural marvel are awe-inspiring. Stretching an impressive 101 meters in length, the cathedral spans across a width of 46 meters, showcasing its grandeur.

At its highest point, the cupola soars to an astonishing height of 77 meters, creating a captivating sight. The cupola itself boasts a diameter of 23 meters, adding to the splendor of the cathedral.

With its distinguished status as a basilica, Mary, Queen of the World Cathedral exhibits the splendor and grandiosity that befits such a title.

Its commanding presence and intricate design make it a beacon of faith and a symbol of religious devotion in the heart of Montreal.