A round-up of the best stories on cities and urbanism we've come across in the last seven days.
Turning the traditional umbrella upside down can keep you dry in more places.
What could be the worst tidal surge in six decades has swamped parts of the U.K. but not London, thanks to the miraculous Barrier.
And why they leave so often.
Blame cars, and coal-fired burners.
The libertarian from Kentucky has his own plan for how to save Detroit.
It has three car elevators.
Memorials and tributes to the South African icon, from Soweto to Brooklyn.
With an upcoming art installation, anyone can "adopt" a tiny figurine online and wait for it to be found in Singapore.
People in underserved communities want better food. They just can't afford it.
And what it'll do now that it's run out of places to go.
Tricycles, computer magnets, and other technologies that could help people grow old comfortably.
A group of doctors is trying to convince young Britons that stabbings are serious.
The city is locked in a bewildering debate, with transit funding at stake.
Let U.S. transit agencies buy the vehicles from abroad.
Yup, somebody has given the humble clothespin a "sustainable twist."
Acidic oceans are stressing out fish, say researchers, and that's not good for global food security.
Get paid to scope out eligible singles on the train.
And how to make your city a contender.