Better known as "The Irish Church", the Basilica was constructed between 1843 and 1847, and is a fine evocation of the Gothic style of the 14th and 15th centuries. It is characterized by its huge pine columns, the oak carving in the nave as well as the carved pulpit and choir loft.
https://www.mtl.org/en/what-to-do/heritage-and-architecture/st-patrick-s-basilica