5 /5 John Hsieh: St. Joseph is the Catholic cathedral on the south side of Downtown Buffalo. The cathedral doesnt have much activity outside of mass times as the diocese is actually across from St. Louis church on Main St. on the north side of Downtown Buffalo. There is a small chapel behind the alter and stain glass windows can be found throughout the cathedral. The cathedral is well maintained and there is a small parking lot that is shared with the Erie County Courts, so the best bet is to find street parking when visiting on a weekday.