There are several books about Pittsburgh folklore (I think that one of them is a Thomas White book) that say that decades ago (I think early - mid 1900's), some guys would take their dates to the city morgue, and look at the bodies there for "fun."

There are a lot of fun ghost stories in Thomas White's books.

Personally, in my experience, I had an encounter with one of the ghosts once when I stayed at the bed and breakfast at the Jean Bonnet Tavern in Bedford County.