What I've found useful to convey the relative sizes of countries is to use a website that allows dragging country outlines to somewhere more familiar [0]. That

What I've found useful to convey the relative sizes of countries is to use a website that allows dragging country outlines to somewhere more familiar [0]. That way it's easier to say that driving from one end of the country to another in a few hours isn't really doable because it's the same size as California or the distance from Zurich to Madrid. [0] https://thetruesize.com/ https://thetruesize.com/