Built in 1872 from a design by Andrew Peebles, this cathedral-sized church did become a cathedral about three years later for the short-lived Catholic Diocese of Allegheny, which was formed by taking the rich half away from the diocese of Pittsburgh and leaving all the debt with the poor half. The diocese was suppressed in 1889, but old dioceses never die, and there is still a titular Bishop of Allegheny. The current holder of the title is a retired auxiliary bishop of Newark.

This relief of the Resurrection takes on added drama at night.