I really like St Patrick's RC Church - 1882 - Kintora, Ontario
https://www.google.com/maps/place/Ki...6!4d-81.074065
When I drove by earlier this Spring scaffolding was around it, apparently they're rebuilding the steeple.
The polar opposite of RC but I rather like the stark modernism of these family of churches (there's another one near Floradale): Fair Haven Mennonite Church - c.1975 - Millbank, Ontario:
https://www.google.com/maps/@43.5999...7i13312!8i6656