There’s also Hyvinkään kirkko from, well, Hyvinkää – which is just a repurposed UFO that happened to crashland on the lot;
Let’s not forget Lauritsalan Kirkko in Lappeenranta that got second place in the ugliest church vote if memory serves. I saw this thing as a kid and asked what it is. My dad told me it’s a ski jumping tower and I didn’t even question it
I discovered recently that finnish language has a term “piruntorjuntabunkkeri” = anti- devil defence bunker and that it is refering to these type of brutalist finnish churches