Once a Roman camp called Bonna, then an electoral residence, later a political center of the Federal Republic, and today a cosmopolitan UN city - Bonn's history is unique and its diversity is limitless. The university and Beethoven city offers not only the "Bonn way of life" but also a wealth of astonishing facts, surprising secrets, and many curious anecdotes. Barbara Steingiesser playfully tests knowledge about one of Germany's most popular major cities.