These graphics chart the most popular routes in 22 cities.
The iBag also supposedly will snitch to all your friends if you start spending too much.
The next generation of traffic signal technologies aim to take the guesswork out of intersections.
The people and ideas reshaping urban life
The year's major weather events are all crammed into eight minutes of entrancing footage.
Entering a construction zone in Tokyo can involve interactions with waving, dead-eyed humanoids.
No matter how powerful a facial-recognition technology is, it can’t get the job done without a way to link names to faces.
An unfortunate intersection of trends.
Nine of the 10 hottest years on record all occurred after 2000, says NASA.
Next time someone tries to pick your Apple, give them a taste of your Yellow Jacket.
Inside one German man's obsession with building a booze-delivering UAV.
We "drove" thousands of miles to find these beautiful, remote places.
But it's still unclear whether wearing the device is truly legal while driving.
The age of practical facial recognition has begun, and it's only going to get more precise.
Customers now use mobile phones to do everything from depositing checks to paying bills.
Meet the "Crittercam."
"We started getting these letters."
The nano-turbines are so small that hundreds could fit inconspicously on a phone's sleeve.
A conversation with Smart Cities author Anthony Townsend.