Tiptoe
This place was absolutely spectacular; I was fascinated with this place for quite some time, finally seeing it was a great experience. Inside the building is pitch black, but there are intervals where boards are off and the light is allowed in. Some rooms are completely collapsed in, and in the complete darkness it's easy to not notice the missing floor when stepping through a narrow doorway. Most of the hallways are in good condition, but there are a few trouble spots... the ward rooms are less reliable.
There is a tower in the center front of administration, with four balconies (one for each direction) which gives you the greatest view I've ever seen from an asylum.
The basement is extensive, and there are connecting steam tunnels but they are sealed by the pouring of concrete down the manholes from above.