An anniversary ceremony, held each year on September 11, will take place at the 9/11 Memorial Plaza at the World Trade Center.
The Memorial Plaza around the museum and former site of the World Trade Center will be open from 3 p.m.to midnight.
Almost 3,000 people died when hijacked planes slammed into the trade center, the Pentagon and a field near Shanksville, Pennsylvania, on September 11, 2001, hurling America into a new consciousness of the threat of global terrorism. Loved ones read the names of each person killed in the attacks, many holding back tears as they talked about those who died.
President Trump will lead a moment of silence at the Pentagon at 9:37 a.m. ET, the moment American Airlines Flight 77 struck the building. The first moment of silence will be at 8:46 a.m., and houses of worship have been asked to toll their bells at that time.
The historic Arkansas Riverwalk of Pueblo will host a National Day of Service, commemorating September, 11 at 7:58 a.m. Monday.
This year on September 10, Flight 93 National Memorial will host a "soundbreaking" for the memorial's last element, the Tower of Voices.
On Monday night, the "Tribute in Light" commemorative public art installation will take place across the New York City night sky.
The lights go on at sunset and will fade away at dawn early Tuesday. The display can be seen from a 60-mile radius around lower Manhattan, according to the Museums website. There is no formal program.