Out of curiosity, has anyone attempted to make an image map on this site? Is it even possible?
An example of an application of an image map would be: If there is a particular maze section in the story, rather than forcing the reader to memorize the layout of a maze, give the reader the maze as an image and allow them to navigate the maze by clicking on the image.
Of course, you could always just have an image for each page that differs according to where the reader is/has been, but not only would that take twice the amount of time to write but it would also prevent the reader from interacting with something other than text (which can be quite monotonous in a long story).