I partied several times at a cemetery by a ghost town, that was probably more than ghostly than the experience I do have though.
I work nights in a hospital, so one night I was walking down long hallway in the back part of the hospital around 2am Walked past surgery and post surgical and heard screams, not just one voice, but sounded like several different voices. So I go into the surgery area, all the lights off and nobody around. Yell out is anybody in here, nothing, so I go across the hall into pacu and again, lights off nobody around. Walked out and I started to walk down the hallway again and hear the same screams again, so I get to an adjoining hallway go in through a different door into surgery and again, lights off nobody around. It wasn't anything major, but the middle of the night when you are by yourself and nobody is around it was kinda creepy to hear when their was no explanation for it.