was listed on National Registrar of Historic Places in 1980.
A fire started in half of Founders Hall in the summer of 2014 and the damage was restored later during the school year.
=== Maryvale ===
Maryvale was constructed in 1859; it originally served as a laundry. In 1906 the laundry moved to the newly constructed Rosary Hall and Maryvale housed science classes. In 1954, Science classes moved to the new science building and Maryvale became the Library Annex and Studio Annex. It later housed the communications and fine arts departments. Maryvale features a radio studio and a TV studio. The radio shows streams live on livestream. The TV studio is where students film the school's news program, Mount Saint Vincent News.
=== Lourdes Grotto ===
In 1873 the Lourdes Grotto was built and is considered one of the oldest outdoor grottos in the United States. The grotto is situated on a little island in a small lake in an area at one time known as Lourdes Park.
=== Le Gras Hall ===
In 1911, with the opening of a …
