 Since the building opened , several unleased upper floors have been used for events such as charity lunches , fashion shows , and black @-@ tie galas . Silverstein Properties allowed space in the new building to be used for these events as a means to draw people to see the building . From September 8 to October 7 , 2006 , the work of photographer Jonathan Hyman was displayed in " An American Landscape " , a free exhibit hosted by the World Trade Center Memorial Foundation at 7 World Trade Center . The photographs captured the response of people in New York City and across the United States after the September 11 , 2001 , attacks . The exhibit took place on the 45th floor while the space remained available for lease . 
