• 26B New York City Fire Department Ladder Company 3 Truck In The Center Passage 911 Museum New York.jpg
  • 26C Helmet Worn By New York City Fire Department Captain Patrick John Brown on September 11, 2001 In The Center Passage 911 Museum New York.jpg
  • 26D New York City Fire Department Ladder Company 3 Truck In The Center Passage 911 Museum New York.jpg
  • 26E New York City Fire Department Ladder Company 3 Truck In The Center Passage 911 Museum New York.jpg
  • 27A Original Slurry Concrete Retaining Wall And Last Column In Foundation Hall 911 Museum New York.jpg
  • 27B Original Slurry Concrete Retaining Wall Was Used To Prevent Hudson River Water From Seeping Into The Site In Foundation Hall 911 Museum New York.jpg
  • 27C The Last Column Was Chosen To Mark The Completion Of The Recovery Of The World Trade Center In Foundation Hall 911 Museum New York.jpg
  • 27D The Last Column Was Signed By Recovery Workers, First Responders, Volunteers, And Victims Relatives In Foundation Hall 911 Museum New York.jpg
  • 28 During The South Towers Collapse Extreme Stresses Caused This Steel To Fold Over onto Itself In Foundation Hall 911 Museum New York.jpg
  • 29 River Water Line Valve Was Part Of A Pipeline That Carried Water From The Hudson River To An Underground Refrigeration Plant In Foundation Hall 911 Museum New York.jpg
  • 30 Reinforcing Tieback With 21 Steel Cables Enclosed In A Metal Pipe Was Drilled Into The Slurry Wall And Down Into Bedrock In Foundation Hall 911 Museum New York.jpg
  • 31A Box Steel Column Remnant Provided Structural Support For The Twin Towers In The Center Passage 911 Museum New York.jpg
  • 31B The Column Remnants Rose To Form The North Face Of The North Tower In North Tower Excavation 911 Museum New York.jpg
  • 32A Witness At Ground Zero September 12-16 Photo By Stephane Sednaoui In North Tower Excavation 911 Museum New York.jpg
  • 32B Witness At Ground Zero September 12-16 Photo By Stephane Sednaoui In North Tower Excavation 911 Museum New York.jpg
  • 33 FDNY Dream Bike Was Restored For The Members Of Ladder Company 9 And Engine Company 33 Killed On 911 In Tribute Walk 911 Museum New York.jpg

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27B Original Slurry Concrete Retaining Wall Was Used To Prevent Hudson River Water From Seeping Into The Site In Foundation Hall 911 Museum New York

27B Original Slurry Concrete Retaining Wall Was Used To Prevent Hudson River Water From Seeping Into The Site In Foundation Hall 911 Museum New York