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A London Bus That Does Push-Ups

Artist David Cerny calls it the "London Booster."

Cataloging the Olympic Venues

A round-up of the buildings in use during the London games.

London's Change Games

In the end, the Olympics have helped the city achieve in a decade what might otherwise have taken two or three.

Why Urbanites Make the Best Use of Environmental Resources

The head of the environmental program at Bloomberg Philanthropies makes the case in this compelling video.

Counterfeit Streetlights in Qatar

How 920 streetlights in Doha launched a years-long legal battle between industrial designers and the State of Qatar.

Sarajevo: Post-Olympic City and Post-War City

Photographing the complex legacies of the war-torn host of the 1984 Winter Olympics.

An Intriguing But Flawed Attack on Smart Growth

A new study claims to "contradict" the premise that density discourages driving — but does it?

Inside the Weird World of Tracking Gangs on Social Media

With gang members openly posting about their plans to commit violent acts on Facebook and YouTube, police departments nationwide find increased challenges and unique advantages.

A Rat and Pigeon Perform the Olympic Torch Relay

London's most athletic vermin run the torch in this charming animation.

3 Lessons Every Olympic City Should Take to Heart

Done right, the Olympics can increase a city's public spaces and public transportation use.

Wait of the Day: 70 Minutes, at a New Delhi Bus Stop

The Indian capital's heavy traffic is suffocating its bus system.

Not an Official Sponsor, Nike Still Gets More Attention Than Adidas at Olympics

The athletic apparel company gives other Londons publicity as it continues its tradition of ambush ads.

D.C. Police Policy on Cameras Should Earn No Praise

Don't get too excited about a seemingly reasonable new policy on citizens photographing police officers. The city was forced to do it, and they're not happy about it.

This Week in Bans: San Francisco Bites Apple for Recycling

Also, medical-marijuana dispensaries are outlawed in L.A., chained-up pooches in Virginia.

The Chicago Transit Authority Map of Economic Hardship

A station-by-station map of poverty, crowded housing and employment.

European Bikeshare Rankings: Who Comes Out on Top?

The Dutch are in dead last, and one program stands above the rest.

Tony Blair Says We Should Wait a Decade Before Judging the 2012 Games

The former Prime Minister, now an Olympics legacy consultant, advises patience when it comes to evaluating the impact of the Games.

A Saudi Woman Embarks on a 'Faceless Experiment'

Writer Rana Jarbou is blogging her experiences wearing the niqab in Riyadh.

With Big California Water Project, Governor Wants to 'Get Shit Done'

Jerry Brown is taking a blunt approach to a controversial water plan.