South East North West North East South West
Hansan Island Jeju-do Hauido Ganghwa Island
Huaseong Haiensa Changdeokgung Bulguska
5 million 15 million 500 000 50 million
38th Parallel Mason-Dixon Line Tropic of Cancer Equator
1970-73 1930-33 1910-13 1950-53
Nakdong River Geum River Seomjin River Han River
Incheon Seoul Daejon Daegu
1996 1948 1988 1968