Following news that super-cities are continuing to expand in size, urban centers that are short on space are starting to turn their attention underground.

Are you a certified scuba diver? Love going for long hikes and camping excursions? Enjoy nothing more than busting out your kayak paddles? Time to move to the city.

Self-driving cars might sound crazy futuristic, but they'll be hitting the road sooner than you think. Time to get up-to-date on all the latest driverless car news.

From a fast-growing start-up scene and creative job opps aplenty, to brand new bike paths, revamped public transit, and vibrant urban culture, Toronto is getting in gear to win Gen Yers back.

Change only takes place when regular citizens like you and me make our opinions heard. And thanks to the Web 2.0, political activism is easier than ever. Here are 7 easy ways you (yes, you) can be politically active.

Lake Tahoe is ultimate road trip material. And for those looking to get out of the Bay Area for the weekend, there's much to discover around this 191-square-mile (!) lake.

Increased food supply, diminished emissions...and billions saved each year. Why solving food waste is the key to saving the world (or at least feeding it).

For the last 30 years, Philadelphia nonprofit Mural Arts has been going, well, off the wall. And in more recent years, it’s been moving off the wall—and out of the box, too.

From the world’s highest bridge to a route skimming Himalayan peaks, these crazy roads, bridges, and other marvels of modern engineering have helped make some of Earth’s wildest tracts accessible by car.

Oscar fame can start with a dream, a camera, and a Zipcar. Our exclusive interview with “Freeheld” director–producer Cynthia Wade.