The Greystone Park Psychiatric Hospital first opened its doors in 1876 as a 675,000 square foot facility in Morris Plains, New Jersey.  At its peak, it served 7,764 patients at one time.  The hospital had been completely unoccupied since 2008, when it was ordered to be closed due to poor conditions and overcrowding. The hospital had been marred in the past by extremely overcrowded conditions, reports of sexual abuse of patients by employees, violence, and patient suicides. Demolition began on the deteriorated building in May of 2015 and finished in November of 2015.