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Rebuilt from one of the world's poorest countries after the Korean War into a top-15 global economy within two generations, a transformation often called the "Miracle on the Han River." Gyeongbokgung Palace in Seoul, first built in 1395, remains the largest of the city's five grand palaces.

Gyeongbokgung Palace, Seoul
Photo: Basile Morin, CC BY-SA 4.0