I once toyed around with the idea of making a browser based virtual world for 4chan when I still used it regularly (~2008ish). Heavily inspired by Gibson and Stephenson. Each board would be it's own green wireframe building off a main avenue with shape and size corresponding to the volume of content - and thus would change over time. You would be able to fly around the 'city' and enter buildings to view the threads. I wrote a lot of notes, but no code... Of course, being a teenager I named the browser 4skin :)