Every day this week hundreds of fire fighters rode into Shanksville, Pennsylvania to mark the anniversary of 9/11 on the spot where United Airlines flight 93 crashed.
"For the greater good they sacrificed themselves. To me those type of people, those heroes bring shivers to me," says Battalion Chief Jack Wise, of the LA City Fire Department.
A decade ago the first battle on the war on terrorism was fought.
A plane thought to be headed for the US capitol, United flight 93, crashed there.
The heroics of the passengers and crew aboard that flight are remembered to this day in tributes all around the area.
"It's very sacred ground, in such a beautiful setting.," according to Sue Ann Solo who was visiting the site. "I can't imagine what it was like when it first crashed."
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"It's very sobering," according to Wendy Ohl, another visitor.