Sing Sing is a maximum-security prison located in Ossining, New York, along the Hudson River. It was established in 1825 and is one of the oldest correctional facilities in the United States. The prison is known for its high-profile inmates and strict security measures, including a large perimeter wall and watchtowers. The name "Sing Sing" is derived from the nearby Sing Sing Creek, which was named by the local Native American tribe. The prison has a capacity of around 1,700 inmates and offers various rehabilitation programs. It has also been the subject of numerous books and films, highlighting its historical significance.