St. Josaphat's Basilica at 6th and Lincoln on Milwaukee's South side. One of 56 minor Basilica's in the United States.

From Wikipedia;

"St. Josaphat's congregation was founded in 1888 by immigrant Poles on Milwaukee's (then) far south side. In 1896, when the parish church proved to be too small, Pastor Wilhelm Grutza commissioned the most prominent church architect of the late 1800s and early 1900s Erhard Brielmaier. Like a number of other Polish churches in the so-called Polish Cathedral style such as St. Mary of the Angels in Chicago or Immaculate Heart of Mary in Pittsburgh, the architectural plans for the new edifice are intentionally modeled on St. Peter's Basilica.

As designs neared completion, Father Grutza learned that the Federal Building in Chicago was being razed. He purchased the 200,000 tons of salvage material for $20,000 and had it delivered to Milwaukee on 500 railroad flatcars, where parishioners were waiting to begin construction."