How far are we from building the perfect city?
Our cities our big. In the future they’ll be even bigger. By 2050, over 6 billion people will live and work in an urban space. These sprawling megalopolises will be places the like of which we’ve never seen. To understand just what these cities will look like – and how we’ll get around them - we spoke to some of the world’s leading architects. And they’re dreaming big.