Important cities are Braunschweig?, Göttingen, Hannover, Oldenburg?, Osnabrück?. Niedersachsen surrounds Bremen, and borders on (from north and clockwise) the North Sea, Schleswig-Holstein, Hamburg, Mecklenburg-Vorpommern, Brandenburg, Sachsen-Anhalt, Thueringen, Hessen, Nordrhein-Westfalen, and the Netherlands.
See the state's own website, http://www.niedersachsen.de/
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