Toothpick cities, two ways.
The Tagtool app may cost an arm and a leg, but the results are weirdly fantastic.
Equal parts heartbreaking and heartwarming, we think.
Thanks to rising seas, 95 percent of the city's marsh area could become mudflats by 2100.
This is not the Super Mario Bros. game you want the kids playing.
Headquartered in a small depot beneath the Williamsburg Bridge, the crew is responsible for overseeing 6,000 miles of road.
The widest bridge in the world, the Vancouver-area Port Mann span, is failing its debut in a spectacular fashion.
This could be the last time you see the San Francisco — Oakland Bay Bridge not mired in godawful traffic.
Incredible footage from the 1920s shows New York's traffic has always been a problem (especially when you're rushing to put out a fire).
Two activists talk about creating leafy green escapes among the high rises of Beijing and Hong Kong.
Coat hanger, bottle opener, laptop desk? A French artist shows that a skateboard can be all of these, and more.
The Housing Authority is using a cultural audit to redevelop the city's outdated South Lincoln Homes, not far from downtown.
Sebastien Toutant took advantage of Montreal's record snow, performing some impressive stunts in a downtown park.
Think your commute stinks? At least there's not a freezing microclimate happening inside your public-transit system.
The 2012 International Poznań Ice Festival.
Can the good work of the Green Impact Zone be sustained once federal funds run out?
In this video, a blend of time-lapse and macro photography creates a festive look.
Robbie Griffith is starting to get noticed in the urban sport, and it's easy to see why.
Go ahead, play a few notes.