My wife and I lived in Germany for 2 years. We went to Munich for a weekend and had an excellent historical walking tour across the city, provided for free by our hostel.
During that tour, we learned that pretty much every stereotype Americans have for Germans (lederhosen, yodeling, beer and brats, etc.) are actually Bavarian culture, not German. And Germans are actually quite offended at the confusion we have between their culture and Bavarian culture.
We also learned that Bavaria used to be quite wealthy and powerful, and intended to split off into their own independent nation at one time. But then Hitler set up shop there and made it his headquarters for the Third Reich. The city was absolutely decimated during WWII, and when the war was over, they not only had to rebuild from scratch, but also had to contribute to rebuilding the rest of Germany, as well as paying for war damages for Europe and all Allied nations, etc. Their wealth was pretty much depleted and their hope of being an independent nation was gone.