Natural Earth data [0] is public domain. Their terms of use state "No permission is needed to use Natural Earth. Crediting the authors is unnecessary." But I th

Natural Earth data [0] is public domain. Their terms of use state "No permission is needed to use Natural Earth. Crediting the authors is unnecessary." But I think they only have down to admin level 1. [0]: http://www.naturalearthdata.com/downloads http://www.naturalearthdata.com/downloads