In Italy, a masked crusader takes to the streets to pick up garbage and scrub dirty windows.
See how your city's black-white segregation levels have changed between 1970 and 2010.
A corral with enough room for 16 bicycles replaces a single car parking space.
It's like a horror film.
Recommended donations and admission fees help patrons see art, not crowds.
Data about traffic accidents that nearly happen could help prevent collisions that actually do.
Even though they lose about a half a billion dollars a year.
Though tens of thousands of people pass by it every day, the East Brother Light Station is remarkably under the radar.
Sometimes, it can be in a city's best interest to encourage the people who do it.
A photographer built a city from bread and let it mold for half a year. These are the apocalyptic results.
Great universities are a necessary but insufficient condition for high-tech growth.
The SF Live Bus app adds a bit of whimsy to the highly practical world of transit arrival data.
There are millions of men and women wandering around America who spent the best years of their lives in this city.
Both President Obama and Rep. Paul Ryan propose cutting non-defense discretionary spending to a historic low.
A new book invites New York residents to draw their own experiences on maps of Manhattan.
Notes of sympathy from Kabul, Afghanistan.
Is there a more widely, vocally despised food than the prissy, expensive, full-of-itself gourmet cupcake?
Shortly after Monday's bombings, cellular networks collapsed. The same thing happens every time there is a crisis in a large city.
If climate change caused the waters to rise by 500 feet, this is what major international cities might look like.