Cities might not want to question the nation's people counters.
200 riders peddled from New York to Washington on the annual Climate Ride.
New Orleans wants to tax its tourist areas, but can't agree on how.
How does where we live affect our health? An expert tries to quantify it.
Researchers are already at work turning toasty asphalt into energy cities can actually use.
A team of "light painters" make jellyfish, birds and a whale appear in this dazzling video from Germany.
An interview with architect Christian Unverzagt of M1/DTW, who uses Detroit's history and resources to create better designs.
Designers in the Mexican city of León try to revive an ailing industry with furniture best described as "oil-slick chic."
Kenowa Hills parents have reacted strongly against a high school principal's decision to suspend 64 seniors for holding a "bike parade."
A city celebrates its first free election in 30 years.
Amazing pictures of an artist's handcrafted city.
Bike lanes could keep accident rates low, even without helmets.
Airports play a considerable role in economic development, and the most important cargo they move is people.
A new ParkScore metric from the Trust for Public Land names San Francisco and Sacramento the nation's best.
The city's search for a post-games stadium occupant has been disappointingly fruitless so far.
A Mary Poppins-esque view of the city.
Stay away from these roadways, especially on Friday evening.
That's the word that Japanese artist Genpei Akasegawa has assigned to doors leading nowhere and driveways blocked by fences.
The Skytree debuts in Tokyo.