WALL ONE is a timeline of the events of September 11, 2001. Each year, on the anniversary, the shadow cast by the steel beam acts as a sundial, moving across the events as they occurred.
WALL TWO is dedicated to the 343 Fire Department New York (FDNY) personnel who were lost.
WALL THREE is dedicated to the 23 New York Police Department (NYPD) and 37 Port Authority personnel who were lost.
WALL FOUR is dedicated to the 125 lives lost at the Pentagon. Of these lives, 55 were members of the U.S. military, including 33 Navy sailors and 22 Army soldiers.
WALL FIVE is dedicated to the 2,460 lives lost by those in the World Trade Centers and the passengers and crew aboard American Airlines Flight 11, United Flight 175, American Airlines Flight 77, and U