nationalgeographicmagazine: Stream, Seoul Photograph by Greg GirardBuried under an elevated highway for decades, the Cheonggyecheon stream once again flows in the open air through downtown Seoul. A 3.6–mile–long stretch of the stream was restored

nationalgeographicmagazine: Stream, Seoul Photograph by Greg GirardBuried under an elevated highway for decades, the Cheonggyecheon stream once again flows in the open air through downtown Seoul. A 3.6–mile–long stretch of the stream was restored

nationalgeographicmagazine: Stream, Seoul Photograph by Greg GirardBuried under