you're right, places have a "feel" to them but people have their own perceptions of it.
I live in lincoln, there's loads of used and un-used raf places round here. I shoot on what was once skellingthorpe airfield which has plenty of stories, whether they're true or not, I don't know.
The first concernes a lancaster bomber which crashed at the side of what is now a field, during the day if I stop near there, even if I don't think about it I get a feeling of grattitude and immense respect. It's quite a happy feeling but if I'm there after dark I like to keep moving because I also understand the loss of peoples lives. This may just be imagination though.
Another part of the land is wooded and I have it on good authority (from those involved) that my shooting buddy's uncle was banned from ever seeing his girlfriend again by her father. He went into the woods and shot himself and wasn't found for several months. These woods, to me are usually welcoming though I'm not allowed to shoot in there and I've always felt I'm in the presence of a friend in there, even when I'm alone and I practice much of my bushcraft there by day. I don't stay the night however and if I did I'd stay at the other end to where he was found because it's a very different place after dark, a place neither me or my friend will usually venture unless we have to.
A few miles away, there's another wood where me and my father used to shoot (though we weren't allowed to) and, to me it's another wood I avoid at night because like you said - I just feel unwelcome there, like something doesn't want me in there - and not just the gamekeeper!!
I also have strange reactions to these things, if you get me talking about ghosts or hauntings I fill up to the point where tears roll down my cheeks, I don't feel sad or any other emotion - it just happens. I've often wondered if the same would happen if there was a ghost nearby but, as yet, I couldn't say.