If you'd like to explore places like this from your own home, play Silent Hill 1 for Playstation (or PS2). Then play Silent Hill 2 for Playstation 2. Both have hospitals like this. SH2 has a jail like this and a morgue. Creepy, close, and you can't get arrested for being there.
Exedor
Location: Kings Park Psychiatric Center Gallery: Buildings 136 & 137 (Medical-Surgical)