Rebecca Ln, Atherton

Atherton is one of the top five most expensive towns in the United States, and is home to many dead-end cul-de-sac streets with mansions, pools, and gates that block out unwanted visitors. Rebecca Lane fits the stereotype to a "T."

There are fewer than a dozen homes total on this tiny, two-block street, but each one seems to be built on its own private estate in the middle of Silicon Valley. Traffic will probably not ever pass through here, given the dead ends on either end; the only attraction here is the Church of the Nativity.

There are a few drawbacks to Atherton, other than the price: proximity to North Fair Oaks, a much poorer neighborhood one town over, puts a big target on this affluent community. There is also no way to get anywhere without hitting some significant traffic.