Dunno if this has changed, but it used to be this way in the US at basically any gas station in a ruralish area by a highway (in other words - stops with truckers), and you'd just have row after row of porn mags. The only 'censorship' is that they tended to be in racks that covered up about 3/5th of their height, so you could see the title and a bit more, but generally anything explicit would be in the lower 3/5th that you could only see if you picked it up.