Pentagon Memorial

Architect Michael Arad stands inside one of the reflecting pools in June 2011 before the 9/11 Memorial was completed. Photo by Amy Dreher.
David Brickley (left), president of the September 11th National Memorial Trail Alliance, the alliance’s vice president, Andy Hamilton (center), and alliance board member Ben Swecker, leave the Flight 93 Memorial Visitor Center on Sept. 12, 2015. Photo by Kecia Bal.