Weather, worker strikes, and structural problems have set back the renovation of the historic Maracanã Stadium as FIFA's deadline looms.
The $9 million Bloomberg Philanthropies contest also awards innovations from Chicago, Houston, Philadelphia and Santa Monica.
That brings the total to about 6,000 dead hogs since Monday, but authorities claim the water is just fine.
Cory Bortnicker takes a humorous approach to enforcing sidewalk etiquette.
It could also catch criminals, broadcast WiFi and... detect meth labs?
And the fungal communities are quite different from what's found in the city's parks.
A "classic example of copy-pasting a first world solution in an emerging economy."
A honey dipper-shaped observation tower inches one step closer to reality.
A seasonal tribute to New York City.
A luxury personal transportation option for the car-free generation.
A community bands together to call for change, but it's not clear what exactly needs to be done.
Crowds descend to await the announcement of a new Pope.
Research finds that Republicans are more likely to crank up the AC in the summer.
Rob Lutter has spent the last 19 months biking across Europe into Asia.
Join in as we discuss how far city governments can go to push people to protect their health.
Stu Larkin, seller of bronzed baby shoes, offers us a rare glimpse into small-town Americana.
Booker's SXSW debut had all the makings (and soundbites) of a man who intends to continue his meteoric rise.
Architects NLE are putting the finishing touches on a three-story, 2,300-square-foot floating school for 100 students in Lagos.
Andrea Bartoli suggests an approach that presumes ignorance on the part of offenders.