The HIV scourge continues to disproportionately affect poor urban areas.
See if you can spot all the different light sources in this International Space Station image.
The BART strike made for a crowded commute, but not a nightmare.
The Cambodian tailorbird somehow managed to elude detection for years, despite being loud and annoying.
James "Tigermonkey" Isaacs was having a rough year. Then he started thumb wrestling.
Never has a hub of governance looked so fabulous.
OK, who dropped acid into England's water supply?
This "Wearable Solar" clothing allegedly can restore half of a phone's power when worn in bright sunlight.
New Yorkers can mount this thing on their heads and never worry about finding a Citi Bike dock again.
This was the largest and brightest the moon will look until August 2014.
And this could go on for several weeks.
Your weekly roundup of what cities are banning around the world.
Let me just walk across the room to get that – OUCH!
The lightning pace of world urbanization is on display in these animated GIFs of Chicago, Dallas/Fort Worth, Hong Kong and other exploding metropolises.
The painting covers nearly 900 feet and looks like an animation to people driving by.
The company behind this "Turtle" helmet, which folds down to half its size, promises it will become part of the urban cyclists’ way of life.
The electrical infrastructure in Mexico's capital did not respond happily to Sunday morning's quake.
A municipal arborist whittled this damaged tree into a street chair for the neighborhood.
All in all, the U.S. suffered 11 meteorological calamities costing $1 billion or more.