Hmm.
Aliens: I think these exist, as well. I find it kind of hard to believe that we're the *only* "fully intelligent" life forms in the entire universe!
But as for the "visitations" aspect and all that... jury's still out on whether I believe aliens have ever come to our planet and stuff. If there are aliens out there, I think it's sadly possible we may never meet them, due to various limitations.
Ghosts: I'm not certain I believe in the actual spirit idea of ghosts. If there is an afterlife, I don't really believe it's the Christian concept of afterlife, where you go with an intact soul with your personality and everything, I feel it's likely something less... I dunno, less structured, solid? I think it's more of a "spectral energy" sort of thing... like just your pure essence continues to exist, it just doesn't necessarily have any real "form".
I think that if "ghosts" as traditionally described do exist, they might be a sort of "imprint" sort of thing... kind of like a person or event leaving a photo on the film of reality. I'm not sure I believe it's the actual dead person(s) in any way.
Mythical creatures: Apologies, but I think that things like dragons, fairies, giants, vampires, unicorns, etc. are simply perceptions of real creatures that have become exaggerrated over the centuries. Any possible creatures that inspired the ideas might still be a spectacle to behold, but I don't think they're really "magical" or anything, per se.
Magic, ESP, telepathy, etc.: I think that things like magic and "mental arts" and stuff like that might exist. There are many, many ways of manipulating the universe that we haven't come close to scientifically documenting yet... I don't find it unreasonable to think that some of those ways might involve humans being able to produce effects that at first glance seem "supernatural".
I guess you could boil my beliefs down to... I believe that "supernatural" things may very well exist. (Certainly I've seen many strange things I can't explain right off!)
However, I think those supernatural things are simply the result of rules of the universe that we haven't discovered yet. I think that supernatural things exist *inside* an undiscovered subset of reality, not *outside* reality altogether, for lack of a better way to put it at the moment.
Peace & Luv, Liz