The events of Sept. 11, 2001, continue to stay with nearly all of us. Almost 3,000 civilians lost their lives in the terrorist attacks on the World Trade Center in New York City that day. More than 400 first responders perished, as well. Now, on the 19th anniversary of that fateful day, we remember. Hollywood remembers, too. "Today we honor and remember the fallen victims and heroes of 9/11," Reese Witherspoon wrote on Instagram alongside a photo of the 9/11 Memorial. "My thoughts are with all the families and friends who experienced unimaginable loss. #neverforget." Click through to see how other celebrities are paying tribute to the victims and heroes of 9/11…
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"Today, we honor those we lost on 9/11 and all the first responders, including civilians, who risked their lives to help their fellow citizens. Let's try to remember that feeling of unity in our country during these difficult times. #UnitedWeStand #NeverForget" —Mark Wahlberg wrote alongside a photo of the evening New York City skyline.
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"We remember the innocent civilians and first responders who lost their lives on this horrific day 19 years ago," Michelle Pfeiffer wrote, adding a quote from Sandy Dahl, wife of Jason Dahl, the pilot of Flight 93. "If we learn nothing else from this tragedy, we learn that life is short and there is no time for hate."
"My thoughts are with and my heart goes out to those who lost people in 9/11. Today is September 11th and in New York that has special meaning… Here's to the people who perished the September 11th attacks 19 years ago today." —Alec Baldwin
"Every year on this day my heart hurts with so many who were alive to experience this terrible moment. Those of us who were living in New York also know how incredible the city and everyone in it supported and held each other. New York, you're beautiful, strong, resilient and we love you #neverforget Love to all families who lost loved ones" —Kate Hudson
"May their memories be a blessing. #neverforget" —Andy Cohen wrote alongside a photo of the World Trade Center.
"9/11 #neverforget #iloveyounewyorkcity" —Heidi Klum wrote alongside a black and white photo of the Twin Towers.
"#neverforget If you ever get the chance to visit the incredible 9/11 Memorial Museum in NY, please do it. Will send chills up your spine 🌆 🙏🏼 #inremembrance" — Kaley Cuoco, alongside a photo of a quote on a wall that reads, "No Day Shall Erase You From The Memory Of Time."
"Never Forget 9/11. Sending Love and Light to everyone today" –Kim Kardashian West
Josh Brolin posted a lengthy viral quote about the unity America felt on Sept. 12. He added, "My ego wants to write its own thing. So I start my hunt for the right photo. The one that's going to scratch at your softest self. I begin to think about where I was and what I thought was happening to the world, and how feral I became in wanting to protect my family. Then I came across the below and it stripped all that ego away and I felt — and I imagined all those terrified people, and all the families and extended tentacles affected by that horrific day. And I remembered that it's not about me, but it is about us. It's all about us. Us is the only thing that prevails."
"Never forget. September 11, 2001" –Rita Wilson wrote alongside several images from that day.
"We will never forget 🙏 Remembering and honoring the innocent lives lost on this day, the sacrifices that were made, the heroes who were taken, and the families affected 🙏❤️ #911day #neverforget" –Olivia Culpo
"May we never forget. 19 years later we remember." —Khloe Kardashian