There is one place named Gengen in Ethiopia.
All places in the world called "Gengen".
Dara (5)K'ore (4)Dodota (4)Gedeb (4)Dera (4)Dolo (4)Ch'erch'er (4)Dima (4)Rare (4)Dobà (4)Dala (3)K'ero (3)Baca (3)Dembi (3)Erer (3)Gumer (3)Terara (3)Abala (3)Dobi (3)Golele (3)Tembo (3)Ara (3)Bulbula (3)Duba (3)Gera (3)Buro (3)Cara (3)Dila (3)Ado (3)Baro (3)