In central Seoul, South Korea, a motorway once covered a buried urban stream. Today, that same stretch has been uncovered—a process known as daylighting—and this river is home to plants, fish and insects. This flowing water cools the city in summer and attracts tens of thousands of people every day. What used to be concrete now boosts biodiversity, the local economy and community well-being.

In central Seoul, South Korea, a motorway once covered a buried urban stream. Today, that same stretch has been uncovered—a process known as daylighting—and this river is home to plants, fish and insects. This flowing water cools the city in summer and attracts tens of thousands of people every day. What used to be concrete now boosts biodiversity, the local economy and community well-being.

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