San Francisco
San Francisco is a city on Northern California, On the North of Silicon Valley. It has lots of touristic attractions, it's the center of many economic activities and it's the most liberal city on United States, if not the world.
It's rare to see someone from San Francisco in Columbia, since they usually opt for other Universities on the state of California. They're very different from Angelenos, but they're equally liberal and open-minded.
San Francisco is, in many ways, like Boston. San Francisco has 2 prestigious Universities, like Boston, on it's outskirts, they are often overshadowed by a southern city (Los Angeles and NYC, respectively), and while those 2 southern cities are economically and racially diverse, San Francisco and Boston are dominated by Yuppies and Hipsters.