We took the cousins - our grandkids - to the cable car museum yesterday. It's a free museum housed in the Washington/Mason cable car barn.
Most impressive are the active winding wheels that pull the cables.
There's a brief explanation of how cable cars work here on the museum site.
And here's a cable car on a very level portion of the ride.
There's more, but have been walking around San Francisco with grandkids in tow. Sometimes on my shoulders. There was an interesting set of posters in the museum about how the mayor in 1947 was planning to do away with the cable cars until some women got together and got a ballot initiative to prevent that. I'll give more detail on that because it has important lessons for people today. We even had some playtime at the Joe DiMaggio recreation center playground.