CNET News Video: San Francisco in 100 years3:01 /
The year is 2108. Here in San Francisco, water is a precious resource and the population has doubled--or even tripled. How will the city accommodate these challenges? And what's it going to look like? That was the task eight architecture firms tackled in the History Channel's "City of the Future" competition. CNET News.com's Kara Tsuboi talked to some of the competitors about their vision for the City by the Bay in 100 years. And yes, there are robots and flying cars.