Seoul has embraced a series of urban-planning projects to make public spaces more attractive to pedestrians. The latest is Seoullo 7017, an old highway overpass that has been converted into a garden in the sky. Much like New York City's Highline, the project has turned a hulking eyesore into green space for the public.

Seoul's government built it, and the people came. More than 3 million pedestrians have visited the walkway since it opened in May, according to the city government.

Seoullo 7017 gets its name from the opening of the highway overpass in 1970 and the opening of the new garden walkway in 2017. It's a nod to how Seoul has changed and a symbol for a city that puts its pedestrians first.

 

From CNN's Innovative Series at http://money.cnn.com/2017/10/19/technology/seoul-transportation-megacity/index.html