Building - A structure that has a roof and walls and stands more or less permanently in one place.
Question #1: Do you know of any building that didn't have a builder?Painting - Any work of art in which objects are represented in color on a flat surface.
Answer: Yes. They are called caves.
Question #2: Do you know of any painting that didn't have a painter?Car - A self-propelled vehicle used for transporting passengers.
Answer: Yes. I could say the whole of the Universe because the Universe is awash in color and beauty far beyond da Vinci's talents, but I'll make it hard on myself and stick to the "flat surface" part of the criteria. Butterfly wings.
Question #3: Do you know of any car that didn't have a maker?
Answer: Yes, but you won't like the answer. See below.