Chocolate World is an area found actually in the Forest World, interacting with a white(sometimes mixed or dark) chocolate bar.
In previous versions, this area also could be accessed via The Hand Hub
Features
As its name suggests, Chocolate World's floor consists of squares of dark or white chocolate. Blocks of chocolate also float around the background and foreground.
There are a few portals here as well. Interacting with the white chocolate bar will transport you to Forest World, the mixed chocolate bar will transport you to the Theatre in the Dark Room and the purple tree (which is also in the Invisible Maze) transports you to the Stone Maze.
There is also a small rabbit running around, a pink cone-head that used to be the portal to the Stone Maze and a number of moving red hour glasses.