Required database of geographical objects in Europe and Asia in the most detailed of the administrative hierarchy to the level of the city-village. I.e. to be able to for separate city full address (Russian Federation, " N " Oblas, EMS district, Eisuke) With the names of the most common languages and geographical coordinates (boundaries of countries, cities, towns as points) for further use with PostGIS.
Look to OpenStreetMap, to described seems to be possible but will require a lot of effort for the isolation of the desired relationships and their ratio.
Is there data that fall under the description (not necessarily even based on OpenStreetMap, possibly paid — will consider all options)?