Decades of conflict left Lebanon without public parks. Now activists are trying to bring them back.
Neighborhood organizers in the city's Barceloneta neighborhood band together to demand a crackdown on an unruly tourism industry. Is this the beginning of a new civic revolution?
A measure called "location affordability" makes major metro areas look like a bargain—and they are, for the wealthy.
Some top mathematicians and computer scientists are devoting time to the problem.
Why the new Indianapolis terminal will be a model for others to come.
More results from the Atlantic Media/Siemens State of the City Poll.
Scientists are publishing emotional letters about the threat of climate change, hoping to engage the public on a new website.
Car manufacturers' efforts have been fruitless, so entrepreneurs are developing ways to save children's lives.