A house I lived in with in the U.K. when the kids were small had a decidedly creepy vibe to one whole 'end' of it. Massive Victorian doer-upper money pit.
Dining room - spooky. Various efforts to get dc to use it for crafts etc completely failed...they'd just drift back out on any pretext.
Bathroom above it - also 'Nope'. It had an amazing roll top bath which we renovated around. No one ever soaked in that bath .
Bedroom next to the iffy bathroom - originally a study for me, because whilst it was a lovely, quirky room, which we thought then 5yo Ds would love, he was having none of it & demanded a box room at the other end of the house instead.
I used to work in there late at night. I'd generally be quite absorbed, but every so often I'd take a break & have a strong, & not entirely friendly, sense of Not Being Alone. I bolted out of there once or twice...
In the course of the renovations, dd1 took a fancy to the study & bagged it as her bedroom so she wouldn't have to share with dd2. She occupied it happily for a couple of years.
Chatting to dd2, now a teenager & several years after we moved out of that house, & apropos of nothing she informs me that 'oh yeah, that was when I had the haunted bedroom. I was mostly ok with it, it was the corridor outside I really didn't like. It was looking down towards that horrible bathroom.'
Me: 'what?! You're the least woo person I know!'
Dd1: 'yup, but that house didn't care that I wasn't woo. Right? You aren't either.'
Me: 'bollocks!'
Dd2: 'That bath, though.'
Me: 'well, ok...'
It genuinely was just creepy down that end of the house. We had people crash after parties in the dining room who really didn't sleep well & were quite sheepish about it.
No idea what the background was!