Thirteen years after the September 11 attacks, One World Trade Center opens to tenants in New York City...<br/> <br />...with enthusiasm tinged by emotional remembrance.<br/> <br />The newly-built 104-story building is America's tallest skyscraper.<br/> <br />Employees of Condé Nast -- the publishing company, which owns The New Yorker and Vanity Fair magazines, among others -- are the first to set up offices here.<br/> <br />A real estate company that co-manages the property says the building is now more than 58 percent leased.<br/> <br />One World Trade Center stands on the location where more than 2,700 people perished when hijacked planes slammed into the twin towers.<br/> <br />It is directly across from the 9/11 memorial in lower Manhattan.
