Freeway transformed into a river

Via treehugger.com

"In Seoul, South Korea city planners paved right over a natural stream to put in a road. It stayed that way for decades, becoming a freeway and adding to the traffic congestion in the burgeoning metropolis. But Fast Company reports that recently, city officials decided to return the road to its natural roots. Here's FC's video of how, and why, they transformed the freeway back into a stream."