Mexico built tens of thousands of suburban houses to support a home-owning boom, with the hope that cities would expand around these communities. But it's not working out that way. Now the country has 600,000 abandoned homes.
Some urban planners say the buzz around “smart cities” is an opportunity to think both enthusiastically and cautiously about the future of development. But while it's the latest trend in urban planning, the fundamental building blocks of cities haven't changed.