Our old cottage where we lived for about 12 years was scary as shit.
It was built in the early 1600s and had been used for many different things in the past:
Housing for quarry workers until a accident killed over 100 people in 1700s in the quarry directly behind the cottage.
A general shop
A butchers (it still had meat hooks hanging from a huge beam in the kitchen 😱 the stuff of nightmares)
We also knew of at least 3 people who died in the house in the last 50 years.
But it was an absolutely stunning house!!!
Anyway, when a very young Dh and I had recently moved in weird stuff started to happen...
Doors would unlatch and open (huge iron latches)
When downstairs in an evening it would sound like heavy furniture was being dragged around on wooden floors when we had carpets.
In a morning furniture downstairs would have moved a significant distance or kitchen cupboards would be open and the contents stacked neatly on the floor.
The tap turned on and off all the time in the kitchen.
TV turned on and off too
The dog would spends hours either growling at or playing fetch with an unseen somebody
The front and back doors of the cottage would mysteriously become bolted from the inside, locking us out. This was a pain as we had to break the doors down more than once.
Myself and several friends/family members heard voices speak to us. I heard a man's voice talking to the dog directly behind me. It said "good boy" clear as day.
My Grandad also got a photo of a lady (who most definitely was not there!!!) when taking a photo of our dog. He didn't show it to me for years as he (rightly) thought I'd be terrified. It just looked like a normal picture of the fog with a random older lady stood in the background in the kitchen. No big deal 
This went on for years and I was terrified to begin with, I couldn't even go to the toilet alone for months when we moved in lol. Gradually I realised that whatever was happening didn't hurt anyone so we all just got used to it.
Things amped up when ds arrived
We had a video baby monitor that would constantly pick up orbs and shadows. It would also pick up a woman's voice trying to hush ds if he cried. Freaky. Really freaky. I had to dash to his room on more than one occasion because I thought someone was in the house.
The worst ever incident was when dh was working away overnight and I was alone with baby ds. There was a huge bang from the corner of the room near to my wardrobe. The dog was going ballistic. I sat up and scanned the room- nothing there. I told the dog to be quiet as there was nothing there and straight after a woman's voice said "but he can see me"
I have never, ever been so terrified in my life. I ran, grabbed baby and went and sat crying in my car and waited for my Dad. At 2 am 😂 it sounds ridiculous now but it was really awful at the time.
After that we got the house blessed and it really eased off all of the weird activity but there would still be occasional things. Never heard any more voices and luckily I never saw anything irl.
We didn't move until after dd was born and ds was older but the dc still ask me about "the dark house with the angry man", even now.
Luckily, we have moved now and our new home is totally boring and quiet! It did feel really 'empty' for a long time though