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REUTERS/Larry Downing

Seven U.S. Mayors Pitched the DOT Like a Bunch of Tech Entrepreneurs

The final hurdle for the $50 million Smart Cities Challenge was a little goofy.

Charles Plateau/Reuters Pictures

If Britain Leaves the EU, Paris Wants London's Business

You'll always have Paris, say French business leaders.

Dann Petty

A Gorgeous, Dreamlike Tribute to San Francisco's Fog

Step into a world of ghostly shapes and meditative music with Hey Karl.

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Reuters/Darrin Zammit Lupi

3D-Printed Weather Stations Will Bring Zambia the Latest Forecast

The apparatus costs just $300, with replaceable parts that can easily be printed.

Eillie Anzilotti/CityLab

Portraits of the Neighborhood

One artist is painting 200 residents of Crown Heights, Brooklyn, to forge connections in one of the most rapidly changing parts of the borough.

Julian Spector/CityLab

Facing the Energy Burden

A new video documents a solar initiative that aims to relieve economic pressures on low-income families. 

REUTERS/Shannon Stapleton

The Damaging Influence of Outside Money on Local Elections

The increasing influence of outside spending on municipal elections is creating imbalances in leadership. Cities have powerful models to fix that.

Adrees Latif / Reuters

Crime in America Is Going Down (Sort Of)

New stats on U.S. imprisonment rates suggest a complicated future for criminal-justice reform. 

Paul Sancya / AP

Which U.S. Cities Suffer the Most During a Recession?

A new study charts the business cycles of the nation’s largest metros across three periods of economic decline.

Reuters / Faisal Al Nasser

In Saudi Arabia, a Rare Tax on Wealthy Landowners

Saudi Arabia’s affordable housing crisis has spurred the kingdom to tax landowners sitting on undeveloped property.

Museum of Broken Relationships, Los Angeles

Hurts So Good: The Museum of Broken Relationships Opens in Los Angeles

The U.S. welcomes a branch of the bittersweet Croatian museum.

Courtesy of Karen Rann

A Painstaking Remake of History's Earliest Elevation Map

A British artist is tracing the curious invention of contour lines. 

AP Photo/Ron Heflin

The 'Browning' of the U.S. Working Class

People of color will be a majority in the American working class by 2032, according to a new analysis. 

Mohammed Nuru/SFPW

San Francisco Deduces the Exact Center of the City, for Some Reason

It took satellites and a $35,000 gadget to mark the geographic center, which is almost certainly wrong.

Taller 13

Mexico City's Invisible Rivers

One group is fighting to uncover the 45 rivers that flow under the Aztec capital, hidden underground for decades.

France Launches a New Terror Alert App Ahead of the Euro 2016 Soccer Championship

With millions of sports fans expected to fill multiple venues over the weeks-long event, the French are beefing up security.

Esri, HERE, DeLorme, MapmyIndia, ©OpenStreetMap contributors, and the GIS user community

Mapping 6,000 Years of Urban Settlements

A new study by researchers at Yale University maps urban centers from 3700 B.C. to 2000 A.D. 

Flickr/Daniel Lobo

How Much Does Sprawl Cost American Commuters?

More than $107 billion annually, or about $1,400 per commuter, a new analysis finds.