San Francisco has a wonderful public transport system, full of trams, trolley buses and these heritage streetcars which run along the main tourist areas to Fishermans Wharf on the F Market & Wharves line.

These streetcars come from all corners of the world and have been refurbished and repurposed to provide an easy and cheap way to get around.  Fares are $US2 for an adult, 5-17 and seniors are US75c, under 5s are free.

If you are interested in the street cars San Francisco has, this website has a list of their cars, of which up to 20 a day operate.