Mayview State Hospital, in Pennsylvania, was in operation for over 100 years. When it was founded, the patient count was around 300, but during the hospital's peak, the patient numbers reached 4,200.
The asylum was officially closed in 2008, but many of the buildings had been abandoned for years prior.
In 2010, the campus was purchased and in the spring of 2012, campus demolition was already underway. Abatement had already begun inside the main building and a few structures had already been demolished. Inside this theatre, most of the seats had been removed and stacked against the walls, but this small section was still in tact.