Place to see: Patricia's Green, San Francisco, California, United States

About this place:

Located at the intersection of Hayes and Octavia streets in San Francisco, Patricia's Green is a pleasant little neighborhood park with a twist: it is home to short-term art installations of the type that stop traffic.

At the time of this writing, Michael Christian's Burning Man sculpture, "Koilos", was in place (and will be until sometime in October 2008).

http://www.patriciawalkup.org/index.html