Monopoly-opoly

I tried looking around but couldn't find anything. I've got somebody I know who collects the various themes and different games. It got me thinking, is there a version of monopoly that every space is a different version of monopoly? I mean it would just be a theme most likely but I figure it should exist since there are so many versions of monopoly now. So like the properties are themes of monopoly and maybe the railroads are the popular rule variation versions, etc.