the San Francisco cable cars are the only moving National Historic Landmark, and 9.7 million people take a nine mile per hour ride on them each year.

The three current operating lines are Powell-Mason, Powell-Hyde and California lines.

The first two start at a turntable at Market & Powell street and the last one starts at Market & Drumm Street.

The Powell-Mason line runs over Nob Hill, Russian Hill and ends at Aquatic Park.

The Powell-Hyde line runs over Nob Hill to Fisherman's Wharf.

The California Street line runs from the Financial district over Chinatown, Nob Hill to the Van Ness Avenue.