Viewing Ancient Rome in Google Earth

You can now view Ancient Rome using Google Earth, or rather a virtual representation. 320CE was a little too early for photography, satellites and banks of servers. This, however, makes me think that it would be rather cool to be able to view an area in GE (or elsewhere) as it changed over time, maybe by adjusting a slider. Of course the amount of imagery you would require would be vast.

One could see how a site (such as the university) had changed over time. Such as from this...



To this...



...and to this.