Hudson River State Hospital

The Hudson River State Hospital is a former New York state psychiatric hospital which operated from 1873 until its closure in the early 2000s. The campus is notable for its main building, known as a "Kirkbride," which has been designated a National Historic Landmark due to its exemplary High Victorian Gothic architecture, the first use of that style for an American institutional building. It is located on US 9 on the Poughkeepsie-Hyde Park town line.

Frederick Clarke Withers designed the hospital's buildings in 1867. Calvert Vaux and Frederick Law Olmsted designed the grounds. It was intended to be completed quickly, but went far over its original schedule and budget. The hospital opened on October 18, 1871 as the Hudson River State Hospital for the Insane and admitted its first 40 patients. Construction, however, was far from over and would continue for another 25 years. A century later, it was slowly closed down as psychiatric treatment had changed enough that large hospitals were no longer needed, and its services had been served by the nearby Hudson River Psychiatric Center until that facility's closure in January 2012.

The campus was closed and abandoned in 2003 and fell into a state of disrepair. Authorities struggled with the risk of arson and vandals after suspicion of an intentionally set fire. The male bedding ward, south of the main building, was critically damaged in a 2007 fire caused by lightning. The property was sold to an unnamed buyer in November 2013. The site is currently being developed as a $300 million mixed-use project called Hudson Heritage, which will include 750 residential units, commercial space, medical office space, a hotel, and a conference center.