I think that was put up for the Halloween haunted house they do every year. Part of the route goes through the hospital wing I remember seeing that, and that door and the numbers look fairly new. I'll tell you though I thought this place was much scarier during the day than it was the night before when we did the haunted house.

Churches leave the most beautiful ruins, just look at the abbeys that were abandoned in England after the reformation. Sometimes it is hard to say which is more beautiful the intact churches or the ruins.

I believe that the mental hospital scenes were actually filmed in Eastern State Penitentiary in Philly.

Looks like it may be the steam inlet poppet trip latch for one of the steam turbines.

Kinda reminds me of the death rays on the martians in the old black and white War of the Worlds. That movie used to scare the crap out of me as a kid.