Dedicated to the Blessed Virgin Mary under the title of Our Lady of Atonement, its distinctive exterior, twin spires and stained glass windows make it a popular tourist attraction in Baguio.

[2] During the Second World War, the cathedral served as an evacuation center, and was the only building in Baguio that withstood the carpet-bombing of the city by American forces during liberation on March 15, 1945.

Among the areas bombed were the Baguio City Hall, Session Road, and the front of the cathedral, where hundreds of civilians who sought refuge died.

[4] In February 1986, anti-dictatorship organizers based in the Azotea Building and in Cafe Amapola on Session Road learned that the People Power Revolution had begun in Manila.

The cathedral is accessible to pedestrians from Session Road via 104-step stone staircase that ends at a Calvary, or through the adjacent campus of Saint Louis University.