A few destinations stick out in everyone’s mind when they think of San Francisco, and for good reason, these attractions have been SF favorites for decades.
Fisherman’s Wharf: http://www.fishermanswharf.org/
Pier 39: http://www.pier39.com/index.cfm
Union Street: http://www.unionstreetshop.com/
Ghiradelli Square: http://www.ghirardellisq.com/
Golden Gate Bridge: http://www.goldengatebridge.org/visitors/
Grace Cathedral: http://www.gracecathedral.org/welcome/overview/http://en.wikipedia.org/wiki/Painted_Ladies