Climb of Honor Airmen climb stairs to honor the 22nd anniversary of 9/11 at MacDill Air Force Base, Fla., Sept. 11, 2023. The stairwell climb simulated the ascension of 110 floors in remembrance of the first responders who lost their lives on 9/11. SHARE: Download: Full Size (5.18 MB) Tags: 9/11, Air Force Credit: Air Force Airman 1st Class Sterling Sutton VIRIN: 230911-F-YW699-1053C.JPG Photo Gallery