Brief Introduction　 Geographic Position Administrative Divisions
Economic Situation City Symbolic Sign Honorary Titles
Opening Up History　 Twin Cities  
   
 
 Twin Cities   
  San Diego in USA
  Phuket in Thailand
  Beppu in Japan
  Angus in UK
  Tauranga in New Zealand
  Orebro in Sweden
  Kunsan in Korea
 Foreign Cooperative cities   
 Miyako in Japan
 Wonju in Korea
 Vladivostok in Russia
 Ulsan in Korea