I'm not a ghost guy, but I would like to go with qualified investigators to the site of the former Beverly Hills Supper Club in Southgate, KY., just across the Ohio River from Cincinnati. It burnt on 28 May 1977, killing 165 people. It was the Friday before finals week, and a group of us went to the roof of our dorm to see if we could see it. Couldn't see fire, but did see smoke and dozens of emergency vehicles heading south on I75.
The site is signposted "no trespassing" and from what I have heard the local police are quite aggressive in rousting anyone who goes in there. It is apparently open once a year for memorial purposes. Below are a couple videos about the tragedy, the first the live news coverage of the fire that night, the second what it looks like today.