As many as 100 million people could gather for Kumbh Mela in the northern Indian city of Allahabad.
An online forum invites insight from the people who work on the ground in the world’s biggest and most dysfunctional cities.
Climate Desk lays out the contents of China's air pollution.
They may tend to adopt easier policies first, according to a new report.
Air pollution has been particularly bad in China this week, with levels nine times above what the U.S. considers "unsafe."
Personal Rapid Transit tries for a comeback.
Maps of data offer a precise understanding of the where we shoot different landmarks.
Toothpick cities, two ways.
This week, 30 million people will gather in Allahabad, India. Among them: Harvard scientists asking how on earth is an event of this size possible?
Improv Everywhere's annual no-pants transit ride goes international.
A look at how the words we use have evolved.
In a planned community in Idaho, all teens would be required to carry loaded AR-15s.
Pollution has reached an all-time high, reminding us that China's economic growth has come at the cost of environmental disaster.
A recently revitalized "pocket neighborhood" in Little Rock strengthens the area and protects the environment.
Climate adaptation policy remains pretty untested.
The Tagtool app may cost an arm and a leg, but the results are weirdly fantastic.
The best commuters can hope for is very fast internet very occasionally.
According to new research, where college-educated folks live has a lot to do with population size.
And other findings from a report on very tall buildings...