Google Earth now has 3D-buildings, and it’s really fun to play with. Here is the Times Building, where I work:
A 3D rendering of the New York Times Building in Midtown, as shown in Google Earth.
If you have Google Earth installed, see it for yourself. Or, try landing on the deck of the Golden Gate Bridge, (just zoom in).
There seems to be data for a lot of cities, including my home town of Buffalo, and former home of Boston.