A government tax incentive program has made cycles affordable for thousands.
Russian adventurers dressed like construction workers to reach the ice-covered pinnacle of Mercury City, which is taller than London's Shard.
France's Nantes has a powerful plan to cut carbon, eliminate cars, and redevelop the city's heart.
The worst drought in half a century has brought water levels close to historic lows.
The "Loud Bicycle" prototype can blast careless drivers with a 30-second trumpet that's as loud as a rock concert.
The largest iceberg breakup ever caught on film.
A design firm stitched together 7 distinct buildings of different eras and styles, creating a mixed-use complex in the heart of Pittsburgh.
From what hellish port of call did this monstrous waterfowl come?
Find out exactly why LaHood believes "safety" is the number one transportation accomplishment of the first four years of President Obama's administration.
Fragments of buildings seem to float and spin in the sky in this mesmerizing clip.
Judith Rodin will help design a "climate-conscious overhaul" of New York's infrastructure before the next storm rolls in.
This person probably did not imagine spending the day trying to crawl out from a brand new hole in the street.
In Southeast Asia, the Hindenburg makes a hair-raising encore.
With car ownership falling, taxis are more important than ever.
By the late 1980s, many San Angelinos had given up on their Texas town. But an innovative program reminded them of their architectural heritage.
An urban hacker from Tokyo thinks street poles should look like candy canes, and he's built the 'bot to do that.
This eco-friendly sculpture re-imagines the classic city square decoration.
Pretty efficient, contrary to popular opinion.
It's a Monty Python gag, of course.