The National Anthem is performed by Young People's Chorus of New York at the 9/11 memorial ceremony at Ground Zero in New York City. abcn.ws/3leEhE9 #NeverForget | ABC News Live

Most of us remember where we were on 9/11. We watched the events in New York, Pennsylvania, and Washington D.C. unfold from our windows, our televisions and on the ground. The artifacts and installations featured in the 9/11 Memorial Museum tell the story of what happened on 9/11, what led up to it and its aftermath. | National September 11 Memorial & Museum

If you are in New York City, join us on the 9/11 Memorial starting at 3:00 p.m. to pay tribute to those we lost 19 years ago. The Memorial will stay open until midnight for a special viewing of Tribute in Light. www.911memorial.org/anniversary | National September 11 Memorial & Museum

9/11 Tribute in Light shines over New York City tonight. From some angles in Manhattan, the twin beams appear to merge into one—an illusion that still takes your breath away. 🌌 Symbolism: Two powerful beams mark the space where the Twin Towers once stood, turning loss into light and absence into presence. 📅 History: First illuminated on March 11, 2002, just six months after the attacks, the tribute was originally temporary. Its meaning was so profound, it became an annual tradition. 🔦 Scale: