A large watertight door in the well deck of the amphibious transport dock Arlington displays a phrase widely used to pay tribute to the events of Sept. 11, 2001. (Alan De Herrera/Special to Navy Times)
The USS Arlington conducts humanitarian operations off the coast of Haiti Aug. 28 in support of earthquake relief. The ship, a San Antonio-class amphibious transport dock, was named in commemoration of the Sept. 11, 2001, attack on the Pentagon. (Alan De Herrera/Special to Navy Times)
A large pentagon located in the USS Arlington’s well-deck ramp encloses an image of the Twin Towers in New York City and an American flag. The inscription vows that "the sailors and Marines of this warship will never forget." (Alan De Herrera/Special to Navy Times)
A large visual display in the Arlington's Tribute Room lays out the timeline of events on the morning of Sept. 11, 2001, including the terrorists' attacks in New York City and Washington, D.C., and the crash of a plane in Pennsylvania when the passengers attempted to regain control of the aircraft. (Alan De Herrera/Special to Navy Times)
The walls of the 9/11 Tribute Room pay homage to those killed in the attack on the Pentagon, as well as the service members, firefighters, and emergency and law enforcement personnel who responded. Several items from that day are on display, including metal taken from the damaged structure. (Alan De Herrera/Special to Navy Times)
A colorful quilt designed and sewn by eighth-grade students at Thomas Jefferson Middle School in Arlington, Virginia, pays tribute to all 184 people who died in the attack on the Pentagon. (Alan De Herrera/Special to Navy Times)
A large pentagon adorns the rear hanger deck door of the USS Arlington. The single red side represents the area where American Airlines Flight 77 struck the building at 9:37 a.m. on Sept. 11, 2001. (Alan De Herrera/Special to Navy Times)
An American flag flown by the U.S. Navy Seals who eliminated al-Qaida leader Osama bin Laden is displayed near the entrance to the Tribute Room. The plaque underneath reads: "Presented to VADM Bill McRaven from the Night Stalkers, this flag flown on target Operation Neptune's Spear 1 May 11. For God and Country ... Geronimo." (Alan De Herrera/Special to Navy Times)