25 years later: The past, present, and future of the 9/11 Pentagon Memorial

A memorial marks a significant event in the nation's history. The gravity of September 11, 2001, is remembered beside the 184 souls lost.

This memorial is located just outside the Pentagon. It serves as a reminder of the nation's darkest day.

Further details about the memorial and its significance are available, including its past, present, and future, marking 25 years since the event.