Traffic Psychologists in Sao Paolo try to cheer up the city's drivers with signs, high fives, and physical affection.
Designs for greenhouses that would fit between buildings and grow, among other things, bananas.
What do 1.6 billion mass transit trips through the city look like?
The American presidential candidate may not understand that for Britons, complaining is a way of showing you care.
One former war correspondent compared it to the "American military bases in Iraq and Afghanistan."
The 1976 games were largely considered a financial disaster. Can their legacy finally right itself?
Watch these 11 cities boom over recent decades. From space. In animated GIFs.
Workers do well on the east and west coasts.
Contaminated soil has made growing difficult for many farmers. But Artfarms thinks they can change that.
Weather forecasts like these can change substantially over the course of mere hours.
Can a team's star player affect a city's economic trajectory?
Watch cars get launched into the air like rockets due to ill-fitting manhole covers.
Ben Jenkin jumps, tumbles and climbs his way through Miami Marine Stadium.
London designers want to outfit the Tube with a real-time scrolling display showing the sky passing by above.
Retailers in the Welsh capital have asked local police to enforce an 1824 law that bans sleeping or begging on public streets.
Tracking 29 indicators of urban success.
Europeans rally to free the Russian girl band Pussy Riot.
The city's new cable car crossing the Thames suffered a malfunction this morning, but Opening Ceremonies hype is building.
Ranking the economies of Europe and some of America's biggest cities.