http://galleries.burningman.org/filestore/2/1/3/2/5_77066993e678572/21325pre_e22c4dbebc668da.jpg?v=2013-08-23+05%3A26%3A52
One of the obelisk control towers.
http://galleries.burningman.org/filestore/2/1/3/2/5_77066993e678572/21325pre_e22c4dbebc668da.jpg?v=2013-08-23+05%3A26%3A52
One of the obelisk control towers.