Further screenshots and videos, which show the same technology, can be found at www.heidelberg-3d.de and www.nrw-3d.de. These do not show free or user generated geodata, but official data from the land surveying office. In Heidelberg e.g. a precise 5-meter terrain model, as well as textured buildings (LOD2 and LOD3) are used. In NRW-3D all buildings in North Rhine-Westphalia have been integrated via CityGML - with more than 6 million the largest 3D-Citymodel known to us.
2012 University of Heidelberg, Department of GIScience, GIScience