Some others:
Aliens. I can't remember the title of the book, but there was a nonfiction book published in the 80s or early 90s about a guy who claimed to be kidnapped by aliens. I made the mistake of reading a few chapters. I had nightmares for years about aliens and they still kind of freak me out.
Staircases without risers between the steps: I always felt like I was going to fall through the stairs.
Threaded Mode
