The caves were used as a speakeasy in 1930's, visited by many gangsters.

The ghostly activity includes faintly hearing music, lights and doors moving on their own, along with the shadows of a man and woman appearing on the dance floor.

"It's out of the corner of your eye," Nurse Hatchet, who gives tours at the cave, said. "You see them and you turn, and they are gone. At any one given time we have 25 to 30 ghosts. I know it's a very high ghost to square foot ratio. We are proud to say that we are one of only three sites in St Paul considered haunted enough to qualify for the National Register of Haunted Places."

The Wabasha Street Caves offers the Lost Souls Tour. For more information, click here.