“In Seoul, the restored waterway has been a triumph. It doesn’t just provide a peaceful refuge from the city’s busy streets, it serves as a cultural corridor with year-round festivals and performances, while helping cool the surrounding neighbourhoods, fighting air pollution and managing increasingly intense monsoon floods.”

https://www.theguardian.com/world/2025/jan/17/seoul-cheonggyecheon-motorway-turned-into-a-stream

theguardian.com

‘Everyone thought it would cause gridlock’: the highway that Seoul turned into a stream

Cheonggyecheon stream in the South Korean capital has become an attraction – and helps with flood management, fighting air pollution and cooling the city