At Battleship Cove, the USS Massachusetts sits in the distance of a piece of 9/11 steel.
There was a 21 gun salute right before eleven doves are set free.
Brendan Lund shares how he saw terrorists use our own planes as weapons of mass destruction.
"I was snapped back to reality by the sound of loud crash. A piece of the building had fallen and just flattened a car, a hundred feet from where I stood," said Lund.
Lund was on the subway underneath the north tower when the first plane hit.
"I took just a few steps off the train and I heard a massive explosion above my head. The ground trembled where I stood," said Lund.
Lund walked to his office building, located next to the twin towers. He then called his family to tell them he was ok.
"With that I hung up the phone with my hand still on the receiver, I watched the second plane fly directly into the south tower, as if it were in slow motion," said Lund.
High school student, Justice Andrade said, "It'll definitely stick with me forever. I've seen news interviews and stuff like that but it's different when you actually see a person in front of you, and you can see how they feel."
Lund feels more grateful and appreciative of experiences like the simple task of walking to work.