Mary, Queen of the World Cathedral, this ornate church is situated in downtown Montreal and is the seat of the city’s Roman Catholic archdiocese.The Cathedrale was ordered by the 2° bishop of Montreal to replace the Saint-Jacques Cathedral which burned to the ground in 1862.Mgr Ignace Bourget wanted the new church to model St.Peter’s Basilica in Rome.it was consecrated as Saint James Cathedral in 1894.In 1966 that the church was rededicated as Mary,Queen of the World by Pope Pius XII.