New York

New Yorkers Stay Out Later, Eat More Brunch Than San Franciscans

And other findings from a mobile app that tracks how people in different cities spend their time.

This Camera Weighs Less Than 4 Ounces and Can Reduce Complaints Against Police by 88 Percent

So why are law enforcement agencies refusing to use it?

Dazzling Timelapse Videos of Millions of FourSquare Check-Ins

In six global cities.

The Closest Look Yet at the Relative Energy Efficiency of Big Buildings

How do you reduce the greenhouse gas emissions of skyscrapers? For starters, make a chart. 

How to Bring Economies Back After a Natural Disaster

Rebuilding is never just a matter of putting back structures.

Are Guerrilla Bike Lanes a Good Idea?

One of New York City's busiest streets doesn't have a full bike lane. The other night, some cycling advocates took matters into their own hands.

Be Like Mike: How Bloomberg Became the World's 'Mentor'

He wanted the way he ran his city to become a model for mayors everywhere. But can that idea persist once he's out of office?

Could Nighttime Deliveries Solve a Lot of Our Traffic Problems?

One man's crusade to get restaurants, shops and offices to receive all their goods between 10 and 6.

One of This Week's Silliest Publicity Stunts Involved a Duck on the New York City Subway

Authorities were not happy. 

A CSA Where the 'A' Stands for Art

Brooklyn CSA+D connects people interested in collecting art at a reasonable price point with artists who want their work to find a home.

Why Cops and Prosecutors Are Begging iPhone Users to Upgrade to iOS 7

The new operating system might reduce iPhone thefts. 

A School Devoted Entirely to the 'Science of Cities'

The Center for Urban Science and Progress wants to study city problems — and to solve them.

Can Mayors Really Save the World?

Untangling the theory that local ideas can fix global problems.

For Around $14, You Can Own Part of the Empire State Building

New York's most famous building is going public.

JFK's Most Famous Terminal May Soon Be Transformed Into a Flashy Hotel

The Eero Saarinen-designed TWA Flight Center is finally, maybe, getting a second life.

A Necessary War on Garbage Trucks

Inside New York City's plan to reduce the annual miles driven by its sanitation department.

How Stop-and-Frisk Is Creating a Generation of Young People Who Don't Trust the Police

Only 40 percent of young minorities in low-income New York City neighborhoods say they would feel comfortable calling 911 if they needed help.

How Density Makes Us Safer During Natural Disasters

After Hurricane Sandy, tight neighborhoods and centralized infrastructure recovered more quickly than spread-out areas.

The Ages of 1 Million New York Buildings, Mapped in Explosive Color

This could be the most detailed open-data map of urban gerontology in existence.