The UI in that link looks really old. If you want the more modern, 3D view, I'd recommend going to maps.google.com, switching to satellite view, and zooming out.
Tangentially, I recently was using Google Earth, and zoomed all the way out so that the background stars, Milky Way, etc could be seen. Anyone know how accurate that scaling is of the background relative to Earth is? What caught my eye was the scale of Orion.
It is interesting, why Google or anybody else have not made a map of Moon just like Googlemap of Earth. Are there some technical problems?