As if Google wasn't omnipotent enough, they're now experimenting in time travel. Google has launched a 3D reconstruction of ancient Rome as it may have been in 320 AD. As a virtual traveller you can now see every building as it was, just prior to the rise of Constantine. I can Christian reconstructionists rubbing their hands right now.
For more download Google Earth 4.3. Look close and you may see some lions feeding on Christians in the Roman circus.