The Pentagon Memorial's One Hundred and Eighty-Four Benches

At nine thirty-seven in the morning on September eleventh, two thousand and one, American Airlines Flight Seventy-Seven struck the west wall of the Pentagon at five hundred and thirty miles per hour. The plane had been airborne for less than ninety minutes. All sixty-four people aboard were killed. One hundred and twenty-five people in the building were killed. It was the third of four coordinated attacks that morning; the fourth plane came down in a Pennsylvania field.

The section of the Pentagon that was hit had just undergone a major renovation, with reinforced concrete and blast-resistant windows. The renovation had been completed only weeks before the attack. The reinforced section held longer than an unreinforced wall would have, buying time for evacuation. The structural engineers who designed the renovation had not known what they were designing against.

The Pentagon Memorial opened in two thousand and eight. It contains one hundred and eighty-four memorial benches, one for each person killed. The orientation of each bench is intentional and precise. Benches oriented toward the building mark Pentagon employees. Benches oriented toward the sky mark passengers and crew of the plane. The simplest design element in the memorial, a name cut into each bench, is the hardest to stand in front of. All one hundred and eighty-four names are there.

There is a note on the numbers. One hundred and eighty-nine people died in the Pentagon attack: sixty-four on the plane and one hundred and twenty-five in the building. The five hijackers are not memorialized. The count for the benches is one hundred and eighty-four: that figure represents the victims, and if the publicly available documentation does not precisely account for the five-person difference, the memorial's own count of one hundred and eighty-four is what is there to be counted.