Springy Answers

At its peak, the cable car system of San Francisco had twenty-three lines. Today, only three remain (two from downtown to Fisherman's Wharf and one on California Street) and they are primarily used by tourists. 

To learn more about the history of the cable car system, check out Wikipedia's article on the topic. Or you can visit the Cable Car Museum in person.

To learn more about the current routes and fares, visit transit.511.org.

And for some fun, check out this cool interactive map of San Francisco's streetcar and cable car network or watch this brief clip on cable cars from the History Channel!

Photo Credit: Cable Car 15 on Powell Street - photo by VeggieGarden / Wikipedia.org.