My wife's aunt and uncle renovated their 1897 farmhouse years ago. the crew that was there working left the house one day rather abruptly. They said they saw a woman in a white Victorian dress come down the stairs and the go around the corner. They never saw her again. 6 workers saw this happen. They returned to finish the work and saw the same figure one other time.
Separate incident recently, I was in my own home making dinner. I was home alone and we don't have kids. I was chopping some veggies and heard in a VERY clear children's voice say "I can't". I heard it, and more interestingly, the cats heard it. they growled, and ran out of the room. I can't say it was a ghost but I can't say it wasn't. I do believe in them so maybe I am predestined to believe.
Chris