Germany has 16 Bundesländer! The Hauptstadt of Germany is Berlin.
Austria has 9 Bundesländer and its Hauptstadt is Vienna.
Bern is the Hauptstadt of Switzerland, which has 26 Bundesländer.
Der Grund means both ground and reason, which makes sense if you think about it — if you have a reason for something, you stand your ground!
You’ll find this word in other places, too. For example, Grundstück literally means a piece of ground!
Try pronouncing some of these difficult words: