High Quality Content by WIKIPEDIA articles! Notre-Dame Basilica (French: Basilique Notre-Dame de Montréal) is a basilica in the historic district of Old Montreal, in Montreal, Quebec, Canada. The church is located at 110 Notre-Dame Street West, at the corner of Saint Sulpice Street. It is located next to the Saint-Sulpice Seminary and faces the Place d'Armes square.The church's Gothic Revival architecture is among the most dramatic in the world; its interior is grand and colourful, its ceiling is coloured deep blue and decorated with golden stars, and the rest of the sanctuary is a polychrome of blues, azures, reds, purples, silver, and gold.