Bicyclists and public-bus commuters in San Diego are exposing themselves to a whole lot of crap in the air, according to new research.
Robbie Griffith is starting to get noticed in the urban sport, and it's easy to see why.
Parts of the outback are lit up with so much flame they look like huge metropolises at night.
What is causing these glowing orbs over the Mission District?
Also, a Canadian city goes after bullies and a Chicago alderman takes the war on pigeons to a new level.
Cities around the world are reinventing the highway with things like de-icing pavements, color-changing paint and wind-powered street lights.
Sure, it could kill you, but there's no thrill quite like riding on the roof of a 125 mph commuter train.
To its credit, the animal behaved better than many public-transit riders.
The energy disparity between Pyongyang and its neighbors is clearer than ever in this awesome NASA satellite shot.
Please don't let "Human Kopi Luwak" become a thing.
Beaches are littered with a trail of rotting cephalopods stretching for 11 miles.
Russian adventurers dressed like construction workers to reach the ice-covered pinnacle of Mercury City, which is taller than London's Shard.
The Battle of the Commute rages on, as this painful-to-watch footage shows.
The "Loud Bicycle" prototype can blast careless drivers with a 30-second trumpet that's as loud as a rock concert.
Also, Albuquerque is left vulnerable after outlawing barbed wire and a British ice cream-truck driver who rocked too hard is shut down.
An expert explains why light pollution won't totally destroy 2012's final and most dazzling space show.
From what hellish port of call did this monstrous waterfowl come?
The $45 million price tag will get you a huge lap pool (with cabana), an art gallery, a movie theater, and a 2,000-bottle wine cellar.
The unnamed cleaning contractor had built a secret napping nest inside an airport bathroom.