What is the difference between streetcars with cables, cable cars, trolleys and trolley tours?

Turns out, a lot.

Whenever John and I travel, we rarely do any of the typical tourist stuff. Mostly because we like the road less traveled, but also because we are not fans of big crowds.

But last week while tagging along with John on a work trip, I decided to go “full tourist” for a couple of days in San Francisco.

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