Don't forget Shanksville, Clier. You're close to that. Gettysburg would be a little more of a trip, but doable.
And there's a Gravity Hill near Bedford. My mom did that as a girl and used to tell us about it.
Gravity Hill - Defy Gravity - Bedford County, PA
If my parents were still around I could tell you more, but, they left the mortal coil a long time ago. I went back to that area often, but we didn't do any ghosty things.