Laminated World Map

I am trying to teach my smallest some geography and at the same time to decorate his large room with something educational and good-looking. I am thinking of an accurately detailed, eight-color mural of the world that covers nearly 9 by 13 feet of wall space. Capitals, countries, major cities, up-to-date political boundaries, time zones, shipping lanes, nautical miles, ocean depths, and more shall be clearly indicated at a scale of 160 statute miles to the inch; Laminated surface may be written on time and again with a dry-erase marker. If you guys come across any of these, please send me your suggestions. Comments on this post. Thanks