There's no question. You remember right where you were that day.

I know I do. It actually started out fairly innocently. This was back before things could travel like wildfire on the internet. And before smartphones and social media. I just remember hearing at first, that a plane had crashed into the World Trade Center. At first, it just sounded like an accident. Then the second plane hit, and everything changed.

I was working in a restaurant that has long since closed in Portland. But I vividly remember almost every detail of that whole day. We all stopped working and gathered around a TV upstairs, and after several minutes of people shaking their heads in disbelief, if not crying, our boss told us all to go home and hug our families.

Here we are, 20 years later.

All these years have gone by, and after the dust settled, it's taken our whole country all this time to only kind of heal. But one thing I think is totally true, is that as a nation, we have not forgotten. We honor lives lost every year, and it's part of the fabric of our history. And history lives on. Just like right now at the Brewer Public Safety building.

As seen on WABI last night, there are two pieces of the World Trade Center on display. Both are pieces of steel structural beams from the buildings. One is being displayed in the building's museum, and the other hangs in the actual firehouse. Fitting spots for both pieces.

An amazing gift.

Brewer, along with many other fire departments around the country, was gifted these pieces in 2008. Here's how it went down, according to Jason Moffitt, Director of Brewer Public Safety:

The architects of the building made an arrangement with the Port Authority in New York City and arranged to have some of these artifacts brought up. We actually drove down to the Port Authority. It was a Brewer Police Sergeant and a Fire Captain and they escorted these back. Another city building there is a piece of the siding that had melted.

They are definitely a solemn reminder of one of the most horrible days in American history. But, we as a nation constantly try to keep the memories alive, of those lost in the tragedy. No one will ever forget, we've just learned to try and live with it as best as we all can.

See 20 Ways America Has Changed Since 9/11

For those of us who lived through 9/11, the day’s events will forever be emblazoned on our consciousnesses, a terrible tragedy we can’t, and won’t, forget. Now, two decades on, Stacker reflects back on the events of 9/11 and many of the ways the world has changed since then. Using information from news reports, government sources, and research centers, this is a list of 20 aspects of American life that were forever altered by the events of that day. From language to air travel to our handling of immigration and foreign policy, read on to see just how much life in the United States was affected by 9/11.

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Because the regulation of exotic animals is left to states, some organizations, including The Humane Society of the United States, advocate for federal, standardized legislation that would ban owning large cats, bears, primates, and large poisonous snakes as pets.

Read on to see which pets are banned in your home state, as well as across the nation.