USA Jul-Aug 2011 /events/newyorkcity.shtml homepage_banner_audience.jpg 23 July 2011 New York 24 July 2011 Washington DC 26 July 2011 Boston 28 July 2011 Atlanta 30 July 2011 San Francisco 31 July 2011 Los Angeles 2 Aug 2011 Chicago 4 Aug 2011 Houston