4/ As an aside, Hamburg (which, confusingly for non-German speakers is abbreviated as "HH" for "Hansestadt Hamburg") is confusingly both a German city and a state (as are Berlin and Bremen).
This often leads to funny-looking address formatting when ๐บ๐ธ American companies apply their formatting to ๐ฉ๐ช German addresses.
We call it the โBerlin, Berlinโ bug.
See our guide: https://opencagedata.com/guides/formatting-addresses
5/ Another famous confusing place example is Tokyo, capital of Japan ๐ฏ๐ต, which includes some remote Pacific islands
#geoweirdness