It's always hard to name a "most famous" anything. The best you're likely to get are some opinions:
Nietzsche
Goethe
Schiller
Kant
Brecht
Grass
Hesse
Johann Goethe
Arguably either Goethe (Guh-tah) or Schiller.
The most famous Christkindlesmarkt in Germany is located in Nürnberg, Germany.
There are no oceans in Germany.
Germany is famous for various reasons. The Berlin wall is Germany's most famous structure. Albert Einstein, Bruce Willis, Anna Frank are all Germans.
I would say the most famous poet in Germany is Johann Wolfgang Goethe, followed by Friedrich Schiller
Germany produces its most famous wines from the Rhine Valley and the Moselle Valley.
There is a Cologne in France, Germany, Italy, and the USA. The most famous Cologne is that of Germany (Köln).
This seems to be an opinion, but in my view the Rhine is the most famous, and the Danube is the second most famous.
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