I have been researching and investigating the paranormal for more years that I sometimes care to admit. I think the most amazing ghost I ever saw was the celebrated "faceless lady" who haunts one of the underground stations in London, England. She is clear in every detail, a long dress, long dark hair, etc. - but a blank where her face should be. I don't mind admitting that she shocked me when I first saw her. She was apparently burned to death in a tragic accident and her face was completely destroyed. Poor girl, how she must have suffered.