Indeed, the few times a second team member does sit up front it's to help the driver navigate big-city traffic, mostly as a second set of eyes out for cyclists, rickshaws and tuk-tuks.

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Around 120 miles south of Los Angeles, the metropolis is the second largest in California, and has all the benefits of big city living but with a relaxed appeal that attracts visitors, college students and potential residents from all over the country.

BBC: Living in: San Diego

His law holds that the largest city is always about twice as big as the second largest, three times as big as the third largest, and so on.

ECONOMIST: Urban research

"The Glass Key" (1942), based on Dashiell Hammett's 1931 novel, was the second film made from this influential book, in which organized crime and big-city politics are cozy bedfellows.

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