....for the ugliest building ever used as a church in the Diocese of Toledo, goes to old St. Patrick's, in Bryan. This c1960 monstrosity took the word "awful" to new heights.
In fairness, it was meant to be a school gymnasium ( And looks it. ) and was a stopgap measure until a new church could be built. The parishioners suffered this little corner of Purgatory for much longer than expected. When the new church was finally built, they made it a gem.