Is 'Who Owns the World' by Kevin Cahill the most important book ever written? It reveals the real landowners for every country on earth. According to Cahill, the Queen of England is the landowner with the most land: she legally owns all of Canada, New Zealand and Australia. It's all to do with feudal laws, apparently. You can't OWN land in Canada, you have NO formal rights. And if the US wanted to buy Canada, they would have to go to Elizabeth II and not the Canadian or British governments. You HAVE TO get this book. It's sickening.