Hi!
After playing a little bit with 3D building models in Google Earth...
I remember there was discussion about 3D formats some time ago on Commons Village Pump. I think will be good idea to return to this subject.
Just imagine chemistry-related articles with 3D models instead of current 2D (see http://commons.wikimedia.org/wiki/Special:Contributions/Benjah-bmm27)...
Indeed, I know about SUL fate... From other side Commons:Geocoding show promising results.
With best regards, Eugene.