If you scrolled down all the way, you must be one of the more curious kind. Are you not an engineer either? Would you like to find out how this map is generated?

This is pure HTML, CSS, Javascript and JSON. The map counts exactly 9 lines of HTML. All the information shown in the tooltips (the small text which appears when you pass your mouse) are contained in a JSON file. A couple of Javascript functions interpret the JSON data into clickable fields on the map. By the way, the map is an SVG object.

You can download the files as a zip right here.