CityGML has officially become an OGC Standard. This is great news for those of us who are tying to work with and exchange 3D models of buildings and cities. I’m still a CityGML newbie, but the more I look at the standard and learn about it, the more I’m excited about what we’ll be able to do in the future with BIM and GIS. Moving data back and forth between BIM and GIS is almost impossible today, but hopefully this is a huge step forward. You can view the standard at this link (after accepting that wacky OGC license).