Google earth added the 3d recreation of the ancient rome very recently.
It is supposed to let you wander through the streets of the city, in virtual reality authenticated and developed by academics from the University of Virginia. Just as there were whole generations brought up to imagine a luscious Rome through the eyes of Alma-Tadema (full of scantily clad women and rose-petals), so there will now be millions who envisage the ancient city as a version of a well known game named Sim City – slightly threatening, over-clean, depopulated and under-coloured.
Check out Google Earth 3D recreation of ancient Rome at http://earth.google.com/rome/