OpenCycleMap / OpenStreetMap is an open-source, public mapping project. It depends on your entries, that's why this map often holds more details than those from Google or Bing. Even the layout of vauban.de was based upon maps of OpenCycleMap. This maps is linked to by an "iframe". This does in no way mean that I claim any kind of ownership of the map data - all the map tiles are provided by the servers of OpenCycleMap.