16 years ago this week, terrorists flew planes into the twin towers in New York, the Pentagon in Washington D.C., and a field in Pennsylvania in the largest terror attack this country has ever seen.
Though it was a tragedy for the United States, the heroism showed by the first responders is legendary.
Saturday, people gathered at Lambeau Field to honor them.
Bagpipes greet more than 2000 climbers, ascending 110 floors worth of steps around the Lambeau bowl, the same amount of floors in as were in each tower of the World Trade Center.
"It makes me feel pretty overwhelmed in emotion knowing that there's people out there that really do care about our first responders," said Jacob Frye, Platteville Fire Department.
"I love it. It shows a great response from the community and the world," said Michael Enke, Gays Mills Fire Department.
On floor 78, climbers ring the bell in honor of the highest floor first responders got to while responding on 9/11.
Climbers said the walk was tough.
“Pretty good, a little winded but not too bad," said Ben Stock, Newton Volunteer Fire Department, after he finished his climb.
But they said it's worth mimicking the first responders sacrifice because it helps to keep their struggle fresh in this country's memory.
"If they could do it, I made a point of going without water until I was past the 78th stair, the highest they made it. They didn't have anybody handing them water, taking breaks, they were going," said Stock.
"I was only in kindergarten when the 9/11 attacks happened. I wanted to experience it for my own understanding," said Frye.
110 floors to honor 343 brave souls, so that we as a country may never forget.
The money raised from the climb will go towards the National Fallen Firefighters Foundation.
NFFF helps families around the country who have lost loved ones in the line of duty, as well as working to reduce firefighter deaths.
This is the fifth time Pierce Manufacturing has hosted this climb.
