The only weird stuff I ever saw was a shadow person, it was on the floor and faded away after about an hour. Two other witnesses saw this too, but it didn't move.

I also saw a strange sprite appear between two street lights a few years ago. and many years before that I saw a ball of light in the sky appear, then it disappeared within seconds.

And if this qualifies, when I used to meditate quite often I would see reptilian eyes, as well as horrible spider looking creatures.

But that's about it.

What about you folks? You ever see anything otherworldly? If so, where?