Upper floors of Montgomery Hall - Late at night - they can do whatever they want and say whatever suits them, There is some crazy stuff that happens up there with no meaningful explanation. You can feel things moving through you. They are cold and unhappy. Perhaps evil, I don't know.
Is the big storage room still under the lecture hall in Hand Chemical Labs. That is where that guy got molested killed back in 1966. They did their best to cover it up, but you can stand outside of that door and hear him scratching trying to get out.
Those are the only two I know. I think the old Ice Plant is gone now. It had the Midnight shift worker They found dead in the ice making pool. He was pretty noticeable, walking around that building. Hard to get anyone to work the night shift back when they made Ice 24/7 over there.