Cable Car in San Francisco Photo

A scenic vertical picture taken close up of a San Francisco cable car. From the street sign in the back ground you can see that this cable car is just passing the famous Lombard Street. This cable car is making its way up Powell to Hyde St. San Francisco's cable cars are unique in that they are the only street railway in which the cars do not operate under their own power. Instead, the cars are propelled mechanically, by "gripping" a continuously moving steel cable which runs in a conduit underneath a slot between the rails.