Notre-Dame Basilica 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. It is filled with hundreds of intricate wooden carvings and several religious statues. Unusual for a church, the stained glass windows along the walls of the sanctuary do not depict biblical scenes, but rather scenes from the religious history of Montreal. It also has a Casavant Frères pipe organ, dated 1891, which comprises four keyboards, 92 stops using electropneumatic action and an adjustable combination system, 7000 individual pipes and a pedal board.HistoryIn 1657, the Roman Catholic Sulpician Order arrived in Ville-Marie, now known as Montreal; six years later the seigneury of the island was vested in them. They ruled until 1840. The parish they founded was dedicated to the Holy Name of Mary, and the parish church of Notre-Dame was built on the site in 1672. François Baillairgé, an architect, designed the interior decoration and choir 1785-95; facade & vault decoration, 1818. The church served as the first cathedral of the Diocese of Montreal from 1821 to 1822.