I have a few
Somewhere in Montana is a lake with a few submerged houses. Back in the 50's (?) half of the mountain collapsed taking a camping ground and the homes with it. Such a weird and frightening thing to view these homes in the water. The waves rush in and out the rooms. I had to go back to the car
Staying at a stately home with my grandparents when my sister and I were 10 and 12. We had our own room, no en-suite. The room had a huge four poster bed with steps going up to it. Many portraits of people long gone lined the wall. I had a nightmare that one lady walked out of her picture and screamed at me to get out. I woke up crying and fell out of the bed. My sister was so frightened she urinated in bed rather than walk down the long hall to the bathroom.
My grandparents took us to the plague village. (They loved these sort of excursions!) My sister complained that someone kept pulling her hair.
My husband and I looked at a home in Kennebunkport Maine. It was built in the early 1700's. I walked in an felt such a wave of despair and fear. I didn't want to be rude so we went through the house with the realtor and the very old seller. He told us the history of the home included Native American's raiding the original part of the home and murdering three of the family. The home was still equipped with "Indian Shutters" for protection. I couldn't wait to leave