Jakarta

Jakarta, Indonesia is the world's sixth most populated metropolitan area, and it's on track to move up in ranks within the next decade. Some planners are trying to figure out how to guide this developing megacity onto a sustainable path.

Residents of the city of Penjaringan in North Jakarta brought a proposal to the government to convert the area underneath a toll road into a public space.

Modern Jakarta has turned its back on its historic core, founded in 1619 by Dutch colonists. A handful of people are now trying to save the historic streets and building from ruin.