Pollution defeats the surveillance state.
The air is so bad, cyclists have taken to creating their own breathing contraptions just to get by.
They capture the spirit of transit in a way no photo could.
Because of global urbanization, the number of people exposed to catastrophic levels of pollution is growing exponentially.
Air pollution has been particularly bad in China this week, with levels nine times above what the U.S. considers "unsafe."
With an end-of-year expansion, it is now the world's longest subway system.
A new website enables residents to identify problems in Beijing's pedestrian and bicycle infrastructure.
Large sections of Beijing were inundated this weekend as the heaviest rains in 61 years drenched the city.
Beijing's street vendors are offering goldfish and small turtles sealed inside plastic trinkets for your amusement.
In this interview excerpt the famed architect touches on his field's role in making great cities