Saint Joseph's Oratory Of Mount Royal

How The Light Gets In reference: Where Marie-Harriette Ouellet goes to meet Brother André

Real world location: Minor basilica in Montreal, Quebec. Saint André Bessette, C.S.C. (1845–1937), more commonly known as Brother André, was a monk and a member of the Congregation of Holy Cross who became internationally renowned as a miracle healer. Due to his reputation, in 1904 he was given funding to construct a small chapel on Mount-Royal across from Notre Dame College[6] to operate out of. The small, Gothic Revival style chapel expanded four times over the next decade with the growing of Brother André's fame and the Congregation decided to fulfill his request to build a basilica in his patron saint, Saint Joseph's honor. The original chapel, measuring 4.5 meters by 5.5 meters still stands today, though it has since been relocated about a hundred meters away to make room for the massive basilica that stands today.

https://www.saint-joseph.org/fr/