Lizenzen
Specific license information for each image or data set can be found on the respective page.
Wikidata - Creative Commons CC0 1.0 Universal (Public Domain Dedication)
Creative Commons CC0 1.0 Universal (Public Domain Dedication)Wikimedia Commons - Creative Commons Attribution-ShareAlike 3.0 Unported
Creative Commons Attribution-ShareAlike 3.0 UnportedOpen Government Licence
Open Government LicenceOpenStreetMap
OpenStreetMapData, we don't use. But it was helpful in early development and should be mentioned: