Maps are a powerful way of illustrating not only the world that is, but worlds that never have been. What follow are not fictional maps — there’s no Westeros or Middle Earth — but plans and hypotheticals that never came to pass. You’ll see military plans for invasions that didn’t happen or conquests that were hoped-for and never achieved. You’ll also find daring infrastructure schemes that would have remapped cities and even whole continents. There are proposals for political reform — some serious and some more fanciful — as well as deeply serious plans for entire independent nation-states that have never been brought to life. Welcome to maps of worlds that don’t exist — but might.