How many people visited the exhibition during its four - month run ?
From November 2008 through October 2009 , the GLBT Historical Society sponsored a pop - up museum in the Castro District at the corner of 18th and Castro streets ; the space featured an exhibition , " Passionate Struggle : Dynamics of San Francisco 's GLBT History , " that traced more than a century of the city 's LGBT history using documents and artifacts from the society 's collections .