The airport which I used to work at some year's back apparently had numerous ghosts which by legend haunted the airfield. In my time there I never actually saw anything but there were certain areas which I felt uncomfortable in even in the middle of summer in the daylight.
The marshals claimed to have seen things on occasions and one of my contractors saw a fireman in old style uniform one evening near the fire station.
The experience of working there is one I won't forget.