The Cable Car Museum, established in 1974, is a free museum in the Nob Hill neighborhood of San Francisco. Located at 1201 Mason Street, It contains historical and explanatory exhibits on the San Francisco cable car system, which can itself be regarded as a working museum. The museum contains several examples of old cable cars, together with smaller exhibits and a shop.
The museum is part of the complex that also houses the cable car power house, which drives the cables, and the car depot. The car depot is not accessible, but two overlook galleries allow the visitor to view both the power house, and also to descend below the junction of Washington and Mason streets in order to view the large cavern where the haulage cables are routed out to the street.