Prosečne GPS koordinate za poštanski broj 121-849: 37.568, 126.903

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Spisak gradova:
>> Seongsan 2(i)-dong/성산2동 121-849, Seoul/서울, Mapo-gu/마포구, 115-150/115-150, GPS koordinate: 37.56823,126.90301
>> Seongsan 2(i)-dong/성산2동 121-849, Seoul/서울, Mapo-gu/마포구, 201-205/201-205, GPS koordinate: 37.56823,126.90301
>> Seongsan 2(i)-dong/성산2동 121-849, Seoul/서울, Mapo-gu/마포구, 451-560/451-560, GPS koordinate: 37.56819,126.90297
>> Seongsan 2(i)-dong/성산2동 121-849, Seoul/서울, Mapo-gu/마포구, 94-100/94-100, GPS koordinate: 37.5682,126.90298