The 2012 International Poznań Ice Festival.
Can the good work of the Green Impact Zone be sustained once federal funds run out?
Highlights from the Sierra Club's list of the country's 50 best and worst.
The super-storm was a wake-up call to cities. But will they keep their climate change preparation going?
Also, Mumbai outlaws spitting tobacco on buses and Swaziland bans clothing that could tempt men to rape.
Like being a kid again...a kid with state-of-the-art technology and materials.
The new building will slope up to 38 stories, with a giant courtyard, almost the size of a football field, cut out of the center.
China's fastest trains were unveiled today. Why the northeast corridor won't be getting similar treatment any time soon.
Nods to Christmas in Breezy Point, Queens.
In this video, a blend of time-lapse and macro photography creates a festive look.
The city has been struggling to recruit one since 2009.
Artists redecorated a dead space between two vibrant sections of Richmond. But connectivity issues still keep visitors away.
A small group of activists are using the internet to get residents to buy and restore homes from the city's golden age.
Stores don't need nearly as much retail space as they used to, and this is seriously hurting the country's real estate market.
The global cities that dominated popular music this year.
Landlords buy inefficient appliances, according to new research.
Bicyclists and public-bus commuters in San Diego are exposing themselves to a whole lot of crap in the air, according to new research.
Public spaces decked out in the season's finest.
Robbie Griffith is starting to get noticed in the urban sport, and it's easy to see why.