The first thing I see was that Trento and Bolzano are seen as a region, that is true, but in reality the region Trentino-AltoAdige does not have much relevance in contrast of the two province by it self. Is a thing that if you don’t live there is difficult to know/understand and differ a lot with the rest of Italy, for historic reasons. Anyway, very nice project!
Thanks Eugenio... indeed many data sources provide different data for Provincia Autonoma di Trento and Provincia Autonoma Bolzano, but to be honest I didn't have space for two LEDs ;)