For many cities, the grid of the streets and transit systems were likely laid down long before the buildings grew up…

It's estimated that one in eight people worldwide live in so-called slums, which, in some cities, makes visiting these…

One can never have too many post-apocalyptic visions of Los Angeles, right? This future L.A. is better known as…

Like every other major metropolis, New York City has tunnels for people, tunnels for cars, and lots of tunnels for…

Military strategist David Kilcullen was in New York City earlier this week to talk about the future of urban warfare at…