We're getting ready to launch a new series on city-level experimentation around the world, and we need your help.
If your hometown's been shot by astronaut/prolific shutterbug Chris Hadfield, it's probably viewable on this interactive map.
We could see seven times as many Katrinas every year.
The people and ideas reshaping urban life
Google Street View goes to its most extreme destinations yet: 4 of the planet's highest mountains.
Researchers say lethal strains of influenza are most likely to arise next in coastal China, the Nile Delta and elsewhere.
And you probably can't even smell it.
John Snow mapped out cases of cholera during an infamous 1854 outbreak in London.
Modern London was built on top of a large number of plague pits, and the city's thirst for more space means digging won't slow down any time soon.
Sixty-six years later, the city's urban design is not so different.
It could also catch criminals, broadcast WiFi and... detect meth labs?
A "classic example of copy-pasting a first world solution in an emerging economy."
Once we all built homepages on GeoCities, the "city" turned out to be a poor metaphor for the web.
The "STD Triage" app lets you email pictures of your "intimate problem" to a panel of dermatologists.
Even the most ubiquitous technologies eventually disappear.
A new online game has a very simple goal: guess the city in a Google Street View. That's harder than it sounds, let me tell you.
Can the city become the next great start-up hub?
What could you change in your community if you just knew more about it?
"You always hear that information is power, and in this case it really is."