A roundup of the best stories on cities and urbanism we've come across in the last seven days.
This experiment in "energy recycling" is like having a giant municipal hot-water heater—and the concept dates back to Roman times.
Cab-sharing has arrived in a serious way with UberPool and Lyft Line.
The people and ideas reshaping urban life
Why travel at all when the most reasonable, thoughtful people on the Internet have rated the world's metropolises for you?
ScenePast lets you send a note with a classic 20th century streetscape from your mobile device. But it's also got an addictive second feature.
It's all about the ratio of total dissolved solids in a given water sample.
In a city that's struggled for peace and solid infrastructure, its 1.5 million residents can finally draw cash.
The app now connecting political protesters could soon connect people in the developing world.
Science has solved a centuries-old question: How does the mind process space?
Self-checkouts feel like a product of the disconnected Internet age, but Clarence Saunders pushed them nearly 80 years ago.
One of America's rising tech hubs may suffer unless it draws more foreign students to its universities—and welcomes them into the larger culture.
When it comes to targeted advertising, there's much, much worse out there.
Shyp carves out a legitimately new space in a crowded shipping industry. But to last, it may have to remain a little fish.
This time around, they might actually work.
The future holds more and more stuff to be transported—and infrastructure will have to change drastically to accommodate our appetites.
This futuristic tower aims to use solar power to eliminate air pollution.
Satellites have picked up on vast gravitational shifts from melting Antarctic ice.
Serious #FOMO, among other things.