Much of the former keyhole product is now free after having been acquired by Google. there is a Beta 1 now available for download. There are some new updated features included. This is a fun product and I have found myself in past versions spending way too much time in it.
Here is a view showing the area where Autodesk's San Rafael Civic Center offices are located.
The Google Earth placemark kmz file. Download Autodesk-CivicCenter.kmz
San Francisco in 3D. Much seems to be from satelite but I heave heard they are also using trucks with laser scanners to acquire the buildings. I even had the streets overlaid on the imagery.
Another source of info here