Personally, I don't believe in any such thing.
I was always skeptical of things like this until something really changed my mind when I was a teen. When I lived at home with the parents, I think it was when I was about 13/14 years old, I woke up one night, dunno what time, but it was black in the room, and was aware of "someone" in my room. Now, we always joked about someone else being the house as my mum's dad died in the room below mine from a heart attack at a young age. I never got to meet him as I was born afterwards.
Anyway, I sat up and my eyes were drawn to the corner of my bedroom, in which I saw a man, in a light grey outline, stood there looking at me. I could see from his waist upwards, in perfect detail, that he had a white shirt on, top button undone, a waist coat, sort of stubble on his face and a flat cap. The detailing was incredible, apart from the eyes,I could tell he was looking at me, but I couldnt see his eyeballs. His hands were crossed down by his trouser line, as if in peace. I looked at him for a while, and went back to sleep!! I didnt feel afraid, nothing, just calm.
Next morning waking up I spoke to my mum and she went quiet and went to get a photo I had never seen. It was him, in the photo, picture perfect, she said he always wore those clothes. Anyway - I decided to go and see a medium, one who was highly regarded in our village at the time. I went there determined to not give anything away, not to give much in the way of descriptions, answers to questions etc and to let him tell me things.....
It was amazing, he brought this man into the room, and he said to me that he had been taking great pride in watching me grow up. He also brought into the room a woman, and as she walked in he started sniffing the air and said "ooh, I can smell something like TCP". The woman was wearing a plain printed dress and white cardigan. My dads mother who passed away in the back of an ambulance some years earlier always dressed like this, and always used TCP. Infact, it would be the first thing I would pick up on when I went into their house, as she would clean with it.
Not only that, but he then went on to describe how she passed away in the back of the ambulance, what she saw, etc.
..... so read into that as you will, but that totally changed my view on things like this. The medium told me other stuff too which was so specific and true, about stuff that had happened in the past and stuff which was about to happen (which also came true), that there was no way whatsoever he could have known.
So are there spirits in Towers - given the age of the place and its history, I would say 110% yes.