Kaiserreich and Weimar Germany has some of the most ridiculous internal borders in the history of modern European States. This is what happens when you unite a bunch of entities whose shape and size resulted from historical contrivances without rectifying boundaries.
The creation of Thuringia had actually made them slightly less ridiculous at this point, but you still have things like that bizarre exclave of Oldenburg in the southern Rhine Province. And how many detached parts did Braunschweig have?
