San Francisco has over 670 staircases that are public walkways.
Some, like the imposing Filbert Street steps, are obviously open to everyone. But there are many staircases that appear as if they are private, such as being part of an apartment building or a walkway leading up to a house. Thus these public treasures, which make San Francisco the special place it is, are passed up or unnoticed by visitors and locals.
One of my favorite staircases is Macondry Lane. Tucked away on Russian Hill, it is a block long walkway with beautiful gardens and landscaping, and wonderful views of the Bay. Guests on Small Car Big Time Tours like to be dropped on at the Taylor St. stairs and get picked up on the other side at Jones.
This is a true San Francisco secret and not to be missed.