Data are scarce, but a look at grants from the National Institutes of Health gives us at least a partial picture.
There aren't many left, but the ones that have hung on are winning by specializing and moving into the events business.
The story of how this urban asset was re-purposed holds truths for cities engaged in similar transformations.
A team of San Francisco inventors view drunks and the homeless as reservoirs of golden fertilizer.
Liz Hickok has created dozens of urban Jell-O landscapes.
Filmmaker Ross Ching explains how he managed to depict the Golden Gate Bridge with no traffic, among other famous locations.
An iPhone app that maps downtown’s indoor parks, rooftop terraces, urban gardens, and bamboo forests.
One witness said "it looked like we had seen the International Space Station come down."
Sometimes embracing free speech means sharing the subway with an ad that churns your stomach.
The cost of water has risen much more in some places than in others.
The creators of "Spoke" will ride from San Francisco to Orlando exploring the hazards of riding in the United States.
Start-ups and entrepreneurs promise a bright future. But is it a future that crowds out the poor and disadvantaged?
A landmark 2008 land use law has led to more sustainable communities.
Growing up, I couldn't wait to flee central Indiana. Now I just feel lucky, and terrible.
The flow of entrepreneurial talent and which metros are "producing," "exporting," "importing," and "consuming" it.
Architects created a San Francisco performance space that feels more like a community room.
One in seven young Americans are neither working nor going to school.
Updated data from metros across the United States.
Three of the finalists in this week's startup contest offer city-themed innovations.