Some areas of San Francisco are so steep that the sidewalk literally is a stairway; other times it’s just more interesting to have a stairway between streets… or a slide. I once saw a grown man with a briefcase matter-of-factly go down this slide and continue on his way down the hill. Why not?
I love visiting Land's End early in the morning when the light is new and the city is waking up. There's a spectacular view of the bridge and the north bay. Makes me grateful to live in San Francisco.