Cycles decked out in everything from Christmas lights to greenery.
Parts of the outback are lit up with so much flame they look like huge metropolises at night.
Let's look at Baltimore as a case study for the on-the-ground, scary risks of federal inaction.
MetroMile, an insurance company aimed at urban drivers with a low-car lifestyle, launched in Portland this month.
What is causing these glowing orbs over the Mission District?
Turns out pedestrians who live in cities consistently over-estimate the amount of time it takes to walk somewhere. Why this matters to density.
They wear their helmets and everything!
A new study suggests that traffic reduction should be targeted at particular communities.
Across the world, people are preparing by hoarding food, climbing mountains, and partying.
Four percent of the country identifies as Jewish, Muslim, Hindu or Buddhist. A peek at where those communities are clustered.
Brooklyn's Barclays Center is proving itself a leader in fostering a strong hometown identity.
The shipping company will make 28 million drop-offs today -- 324 a second.
It's been an eventful year for cartography.
25 strangers share their hopes for the season.
Illustrator Jenni Sparks discusses her lively, unique renderings of New York and London.
As inner cores become wealthier, crime will get pushed out of many cities.
Also, a Canadian city goes after bullies and a Chicago alderman takes the war on pigeons to a new level.
Traditionally stingy with new growth, the city appears to be on the cusp of a major construction cycle.
Cities around the world are reinventing the highway with things like de-icing pavements, color-changing paint and wind-powered street lights.