The "Mayors Challenge" will award "breakthrough solutions" to urban problems.
A floating hotel created by a group of New York artists.
Two filmmakers capture pick-up games across five boroughs.
Despite assurances, concerns that the Barclays Center will bring rowdy crowds and overstuffed streets haven't gone away.
Witness the evolution of NYC's billion-square-foot roofscape in the face of climate change.
Deductive reasoning says Seattleites should drink 'em while they got 'em.
A New York artist has created this glass tapestry of salvaged material, complete with a light show.
As cycling goes mainstream, hardcore riders in New York City complain about being tamed. Here's why they're wrong.
New Yorkers have always had a love-hate relationship with visitors.
Also, the first protester is banned from the London Olympics; shameful Japanese bureaucrats can't drink alcohol for a month; a California city outlaws charity.
A handful of new travel companies ask what you'd learn if you approached the mundane in your own neighborhood like a tourist.
According to a new survey of public officials, city governments face new restrictions from states.
Three of the most embarrassing wastes of city taxpayer money ever recorded.
The setting sun is about to click exactly into the city's grid, creating a godlike spectacle of flame and shadow tonight and tomorrow.
Ever wonder what an airline stowaway sees when peaking out from within his Samsonite sanctuary?
Also, L.A. outlaws plastic bags; Lady Gaga ponders violent threats in Jakarta; and much more.
U.S. Navy Blue Angels soar above the World Trade Center as part of Fleet Week.
Bike lanes could keep accident rates low, even without helmets.
We're looking at you, Manhattan.