Visitors have come from all 50 states and more than 130 countries.
Family and friends of those who died read the names of the nearly 3,000 people killed in New York, at the Pentagon and near Shanksville, Pennsylvania.
Wreath-laying ceremonies, interfaith services and other events aimed at honoring those killed while focusing on the future were held throughout the state.
The names of 343 firefighters were read and, in the FDNY tradition, a bell rung after each.
On this Sept. 11, we take a moment to remember those we lost as well as honor those who responded to the attacks that forever changed our lives. Below are five Sept. 11-related events happening throughout New York City. We will never forget.
The Metropolitan Transportation Authority’s post-Sept. 11 system-wide security upgrades will take until 2017, nine years longer, partly because of damage caused by Superstorm Sandy.
For one ship visiting New York for Fleet Week, there’s a special connection with a lower Manhattan firehouse.
There is a debate brewing over whether it’s appropriate for the 9/11 museum gift shop to sell souvenirs at the exact spot where thousands of people died.
The museum, which opens May 21, aims to tell the story of that tragic day, not just with artifacts but in the words of those who lived it, said 9/11 Memorial President Joe Daniels.
Some clergy members have written letters demanding the museum change the documentary, which they say unfairly links Islam and terrorism.
The verdict was returned Wednesday for Sulaiman Abu Ghaith in federal court in Manhattan.
At a hearing Tuesday, U.S. District Judge Lewis Kaplan rejected a request by defense lawyers. They’d sought to call Khalid Sheikh Mohammed as a witness at the terrorism trial of Sulaiman Abu Ghaith.
A pair of FBI agents were the first witnesses called by the defense on Monday. The agents testified that they first met Sulaiman Abu Ghaith a year ago on the tarmac in Jordan as he stood beside the plane that would fly him to New York to stand trial.
FBI Special Agent Michael Butsch was the chief interviewer to question Sulaiman Abu Ghaith aboard a flight to the United States after his arrest in Turkey a year ago.
The National September 11 Memorial & Museum is set to open this spring after years of delays. But officials at the museum have not yet secured funding for its $60 million annual budget.