You are as empty-headed a Wikipedian as I have ever met.  You obviously do not know, nor do you want to know nor do you want anyone else to know why San Francisco is a great city to live in.  You are acting like a child because you refuse to view the images as they are offered for free.  Historcal, exciting images of a great city.  There is no other site on the web such such a good collection of images of that great city available like that for free and you want to sit there and whine because copies are also availble for ordering.