Two parallel light beams will light up the sky to represent the fallen skyscrapers as part of the annual Tribute in Light public art installation.
RELATED: Remembering the victims of the 9/11 attacks
Bells tolled across New York City, President Donald Trump spoke at the Pentagon, and moments of silence were observed in Shanksville, Pennsylvania, and across the nation Wednesday as America commemorated the 18th anniversary of the Sept. 11 terror attacks.
» Subscribe to USA TODAY:
» Watch more on this and other topics from USA TODAY:
» USA TODAY delivers current local and national news, sports, entertainment, finance, technology, and more through award-winning journalism, photos, videos and VR.