After years of delays due to funding disputes, engineering challenges and a nearly disastrous flood, a museum dedicated to victims of the 9/11 terror attacks in a giant cavern beneath the World Trade Center site will open to the public May 21.
The opening will follow a May 15 ceremony and a six-day dedication period. Officials announced the dates Monday.
During the dedication period, the museum at the World Trade Center site will be open around the clock for 9/11 family members and rescue and recovery workers.
The museum's regular hours will be 9 a.m. to 8 p.m. daily. Admission will be $24 but waived on Tuesday nights.
Relatives of 9/11 victims, rescuers and children 5 and younger will be admitted for free.
Planners had originally hoped the museum could open on the 10th anniversary of the attacks, but construction issues, funding challenges and Sandy flooding contributed to the delay.