Lighting

Photographer Colin Rich created this mesmerizing video of the endless urban fabric of Los Angeles at night.

This video from Public Architecture looks at three outdoor lighting displays and their impact on the public realm in San Francisco.

Natural and artificial light have a significant effect on the experience of hospital patients and can actually reduce stress and hospital time, says Rosalyn Cama, an interior designer and researcher specializes in health care design.

Leni Schwendinger says that cities don't pay enough attention to the way lighting effects the built environment. She's currently working on the lighting for Times Square's new pedestrianized streets.

Last month saw the debut of one of the world's longest footbridges, which also happens to be 100% solar-powered. 36,500 people are projected to walk across the bridge each week.

Fighting gang crime in Los Angeles is as easy as leaving the lights on at neighborhood parks.

What light is right? How much is too much? These questions don't typically get asked in cities, as they simply rely on what they've always done. But now the Municipal Art Society in New York is bringing these issues to the table.