KOSCIOL

I like this drawing very much 👌👍👍👏👏👏👏, but I hope you'll take a moment and identify what church it is. At first, the color and twin pointy spires made me assume it was Warsaw's St. Florian's, but then I looked closer, especially at the rose window and *smooth* copper roof panels. (Allow me to ask the architecture major, what's the term for the spiky gridding like the Floriana's tower roofs have instead?)

Google Translate gives me "Vistula" for "nawislanski" (??), so does that mean there are two similar Gothic constructions along the same river? I feel sadly untraveled, and web image-searching isn't helping.