Lots of interesting things about Bavaria.
House of Wittelsbach- The House of Wittelsbach (German: Haus Wittelsbach) is a German-Bavarian dynasty, with branches that rule, or have ruled over territories including: Bavaria, Holland, Zeeland, Cologne, Sweden, Romania, Bohemia, Hungary, Denmark, Norway, Greece and the Holy Roman Empire. The House of Windsor, the reigning royal house of the British throne, are descendants of Sophia of Hanover, a Wittelsbach Princess and Electress of Hanover
https://en.wikipedia.org/wiki/House_of_Wittelsbach
Neuschwanstein Castle- Start of the art with flushable toilets and heating system. Very unusual for the time.
Also the model for the Disney Castle.
https://en.wikipedia.org/wiki/Neuschwanstein_Castle