Solemn ceremonies honor the 3,000 people slain in the Sept. 11, 2001, terrorist attacks in New York, Washington, D.C., and Pennsylvania on the 18th anniversary in 2019.
The Twin Towers Tribute In Light art installation shines in Lower Manhattan near One World Trade Center on the 18th anniversary of the 9/11 terrorist attacks on the World Trade Center on Wednesday. Photo by John Angelillo/UPI