Years before the Sept. 11 museum was built at the World Trade Center, a storefront visitor center across the street opened to offer tours led by victims' relatives, survivors and others with personal ties to the trauma and tragedy of 9/11.
Sixteen years and five million visitors later, what is now the 9/11 Tribute Museum is poised to close within weeks, its leaders say, barring a last-minute rescue from millions of dollars in debt.
