It is a prime example of the so-called "Polish Cathedral style" of churches in both its opulence and grand scale.

[1] The parish retains its strong identification with Chicago Polonia while welcoming Hispanics and Catholics of other ethnic groups.

Although there has been much recent gentrification in the neighborhood, the parish continues to minister in English, Polish and Spanish.

[2][3] The church was designed by the architectural firm of Worthmann and Steinbach who built many of the magnificent Polish Cathedrals in Chicago.

The crossing is capped by a large dome with cupolas at the exterior corner of each transept and one atop each of the bell towers on the west façade.