Bonn, Washington County, Ohio, 45788, United States of America
Bonn, East Baton Rouge Parish, Louisiana, United States of America
Bonn, Düdingen, Sensebezirk, Fribourg/Freiburg, 3186, Switzerland
Bonn, Frogn, Viken, 1407, Norge
Borne, Gahard, Rennes, Ille-et-Vilaine, Bretagne, France métropolitaine, 35490, France