The Google Earth blog reports:
By FrankTaylor on Sightseeing
GoogleMapsMania recently discovered
that Google quietly added a more detailed road map for the Torino,
Italy area for Google Local. What is interesting is that in Google
Earth we have already had these more detailed road maps. But, not just
for that small area. Google Earth's more detailed road maps cover most
of Europe now.
To see the roads, you just turn on the “Roads” layer, wait for them
to load, and start zooming in. Another big difference in GE is that the
road maps adjust their level of detail according to your zoom level,
and you can adjust your view dynamically including your tilt and see the 3D terrain. You can go to Torino, Italy 
now and see the mountains where the Olympics will be held. Also, in
Google Earth you can see the detail of the satellite and aerial photos
so much better than in Google Maps.
