In response to my post about St Fidelis, Mary from Kansas left a comment referring to this magnificent Church known as "the Cathedral of the Plains" (though it is not actually a Cathedral).
It is known as one of the "Eight wonders of Kansas"; when it was built, it was the largest Church west of the Mississippi river. the exterior of the church is constructed with blocks of local limestone weighing 50-100 pounds each.
Above the High Altar there is a painting of the martyrdom of St Fidelis:
Parish website here
More photos here