This utilitiy shows the player a total of twelve different types of terrain. Now these "terrains" are not the ones on the terrain list, but rather a combination of terrains (and units) to give a particular effect, e.g. a forest path, a frozen river etc.
You can click on a pikeman and it gives you a thorough explanation of what the terrain is and the steps/details of making it. You explore as an infantry unit, but you can enter Marco/Polo of course to see the full area.
The utility is useful for all designers, but especially new designers that want to learn to make a strong visual impact with stylish terrains. The map design is very strong, and has a wide variety of terrain styles.
The explanations are well executed, although one or two of the pikemen were gored by wild animals :D