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Happy Holidays From Cities Around the World

Public spaces decked out in the season's finest.

This 12-Year-Old Parkour Athlete Will Amaze, Scare the Crap Out of You

Robbie Griffith is starting to get noticed in the urban sport, and it's easy to see why.

Feargus O'Sullivan

What Makes London Such a Ghostly City

In England, Christmas Eve is the time to tell ghost stories. A reflection on some of the city's spookiest nooks and crannies.

Brendan McDermid/Reuters

A Search for America's Merriest Cities (Inspired By Dr. Seuss)

Introducing the Grinch Conversion Index. Where in the United States is Whoville?

Jorge Rodriguez-Gerada

Mega-Art of the Day: A Face the Size of 2 Football Fields

Art for airplane travelers.


Gun Buybacks After Newtown: It's a Race to Schedule Them

San Diego joins a growing list of municipalities hustling to collect weapons from a record number of residents.

13 Eye-Catching Houses of Worship

Contemporary churches, temples and mosques that caught our attention.


Austin Celebrates the End of the World in Style

The "end of the world soiree" featured hedonism, science, and a little bit of salvation.

2012's Most Important Preservation Battles

The gas stations, theaters and monuments saved this year.

These Bikes Are Wishing You a Very Happy Holiday

Cycles decked out in everything from Christmas lights to greenery.

What Produces More Light Pollution in Australia: Cities or Wildfires?

Parts of the outback are lit up with so much flame they look like huge metropolises at night.


Death by a Million Cuts: What Cities Stand to Lose If We Go Over the Fiscal Cliff

Let's look at Baltimore as a case study for the on-the-ground, scary risks of federal inaction.


The Future of City Driving: Per-Mile Car Insurance

MetroMile, an insurance company aimed at urban drivers with a low-car lifestyle, launched in Portland this month.

Weird Lights in the Sky Appear Once Again Over San Francisco

What is causing these glowing orbs over the Mission District?


Do Places Seem Farther Away When You Have to Walk to Get There?

Turns out pedestrians who live in cities consistently over-estimate the amount of time it takes to walk somewhere. Why this matters to density.

The Miami Bike Scene

Bicycle Advocates of the Day: The Miami Heat

They wear their helmets and everything!


More Cars on the Road Make You Late, But Some Cars Make You Much Later Than Others

A new study suggests that traffic reduction should be targeted at particular communities.


Are You Ready for the End of Days?

Across the world, people are preparing by hoarding food, climbing mountains, and partying.


America's Most Religiously Diverse Cities

Four percent of the country identifies as Jewish, Muslim, Hindu or Buddhist. A peek at where those communities are clustered.