You can look at [Worldbuilding Site Design](https://worldbuilding.meta.stackexchange.com/questions/2916/worldbuilding-site-design), which has the link to the image [here](https://i.sstatic.net/dtSrG.jpg).

[![WorldBuilding.SE design background image][1]][1]


  [1]: https://i.sstatic.net/Ok3PE.jpg