When I was in high school I dated a guy who lived on a very haunted farm, in Virginia. This farm was a multi-million dollar horse farm where they bred and trained show and race horses. There are a least ten barns on the farm, used for various reasons.
One of the barns held about 20 old antique carriages. These carriages are old and big to move them takes a crane. There are guards that worked for the farm that made nightly rounds around the farm to make sure everything was fine. No one could get in the gate without them knowing. The barn with carriages was used for tours; each carriage had a plaque explaining the history. One morning one of the guards went into the carriage barn. All of the carriages had been moved around and put in the wrong places. Needless to say the guard was very freaked out; it is not possible to move all the carriages in one night, and especially without anyone knowing.
The guards have also shared with me some of their scary experiences doing their rounds. One night we'll call him 'Buddy', was doing his rounds checking on all the barns... He noticed a light on in one of them that weren't supposed to be on. A light was on in the room where they have a TV and a microwave; there is a room like this in every barn. Buddy went into the barn and hung out for a minute watching TV, there was no one in the barn, and he would have seen them. He hung out for a little while and then left, he shut off all the lights and soon as he shut the door to the barn every light in the barn came on! Needless to say he ran for his truck and got out of there!