The bachelor thesis of Manuel Dätwyler and Kevin Hürbi (FHNW – University of Applied Sciences Northwestern Switzerland, Geomatics Engineering) is about OpenStreetMap and OpenWebGlobe:
3D-buildings are generated from the OpenStreetMap database and displayed in OpenWebGlobe. The correct altitude on the virtual globe is retrieved from the ASTER GDEM v2 dataset. All components used, such as OpenStreetMap, OpenWebGlobe and the Elevation data are freely available. The Web Service is implemented as a node.js application.
A demo will be available online soon and the full source code will be released soon on GitHub.
A few more impressions: New York and Beijing: