World Travel City Photography

• South Korea
South Korea has a system of dividing into metropolitan cities, provinces, a special city (Seoul) and one specially self-governing province (Jeju-do). In South Korea, cities should have a population of more than 150,000, and if a city has more than 500,000, it would be divided into 2 districts and then sub-communities follow as a name of dong with similar system of normal cities. Additionally, if a city's population is over 1,000,000, then it would be promoted to metropolitan city.
Seoul is the world's second largest metropolitan area.