Opened in the late 1800's, Callan Park Hospital started out as a pioneering institution for the treatment of the mentally ill in Sydney, Australia. However, after a few years the place soon became pretty grim with a massive overcrowding problem and a lack of funding.
It's a fascinating place, having only recently closed for good in 2008. The main hospital still stands although it now houses an art school, but many of the older buildings have long been abandoned and fallen into disrepair. Most are well and truly closed up with signs warning of asbestos danger, but there were a few places that were still accessible.
All windows were fitted with bars to prevent patients from escaping or trying to commit suicide