This is the 12422nd most frequent German word.
vorarlbergs
"Vorarlbergs" is not a standalone German word; it likely refers to "Vorarlberg," which is a federal state (Bundesland) in western Austria.
The word 'vorarlbergs' in this sentence indicates possession, showing that the landscape belongs to Vorarlberg. It is used in the genitive case.
Vorarlbergs Landschaft ist berühmt für ihre malerischen Berge und Täler.
Vorarlberg's landscape is famous for its picturesque mountains and valleys.
Here, 'vorarlbergs' is also in the genitive case, referring to the inhabitants belonging to the region of Vorarlberg.
Die Bewohner Vorarlbergs sind bekannt für ihre Gastfreundschaft.
The inhabitants of Vorarlberg are known for their hospitality.
In this instance, 'vorarlbergs' is used to specify the capital city as associated with the region of Vorarlberg, again in the genitive case.