Prior to its official public opening, The National September 11 Memorial Museum has arranged for a special tribute-filled Dedication Period for the 9/11 community. From May 15th through May 20th, 9/11 families, first responders, recovery workers and survivors will be able to preview museum exhibits and events. The Museum will remain open 24 hours per day during the Dedication Period in tribute to the thousands of Ground Zero rescue and recovery workers who worked around the clock in the aftermath of 9/11. The previews are free, but reservations are required. To learn more about the events and exhibits visit: www.911memorial.org/dedication.