It's been more than two years since Columbia University professor Kate Orff made waves with her "Oyster-tecture" proposal. She's still pushing.
Private moments at public gatherings in New York and Washington.
A new app launching in Seoul this fall will allow users to navigate from a street corner down into the subway and even to a particular shop or café in an underground mall.
Latino immigrants open fewer small businesses than other groups. Here's how we can close the gap.
A team of scientists assigned tones to different air pollutants. Here are the results.
Long-time city photographer Steven Siegel recalls one of his favorite subjects, the World Trade Center.
One researcher predicts we could see as many as 30,000 more U.S. homicides over the next 90 years thanks to rising temperatures.
With one of the nation's highest foreclosure rates, Atlanta thought it had found the perfect opportunity to build more parks.
Turns out human capital is vastly more important than trade when it comes to generating regional growth.
Guess what kinds of projects the American Association of State Highway and Transportation Officials decided to honor this year?
How L.A.'s rail system has put more riders on transit.
The visionary architect imagines metropolises built like vast orchards.
Large, expensive U.S. metros were more likely to lose residents this summer.
One couple's quest to find serenity in "the wilderness" of Staten Island.
Great public art, or the setup for a hilarious jet-ski accident? You be the judge.
A new book aims to repair the reputation of the much-maligned composite.
Jack Boucher spent his life preserving historic buildings with his camera.
There's a wealth of resources available to communities looking for a place to start.