
In other places, people mow their front yards. In San Francisco, many people sweep their front yards, if they have a front yard. This is an example of a concrete garden. San Francisco has many concrete gardens. |

Sometimes, someone will put a potted plant in the concrete garden. |

Sometimes they just paint. |

I think this is part of the dual water system for fires. San Francisco has a history with fire (remember 1906?) so there are redundant water systems. |

I can appreciate this kind of billboard modification. This was inside the BART station as we arrived in Berkeley. We went to an exhibit of things produced by the Ant Farm. |

This is a stairway which I would like to explore at some point. |