Fergus Falls MN State Hospital.  www.kirkbridebuildings.com for more information if interested.  This complex once comprised hundreds or acres.  Today, they are looking for investors/developers with deep pockets.  Sadly, demolition is a possibility.

More photos here:  http://www.kirkbridebuildings.com/buildings/fergusfalls/

That hideous addition obviously not original.  I wonder why the addition could possibly be needed since these structures supposedly have 500k of square footage.