The Old Courthouse Museum in Sioux Falls is widely rumored to be haunted, with unexplained paranormal activity reported throughout the historic building. Ghost stories involve phantoms haunting various areas of the courthouse, from its grand staircase to the clock tower. Ghostly activity is not confined to one spot. Phantoms are said to be present in nooks and crannies throughout the building, including the staircase and clock tower. Visitors to the historic Minnehaha County Courthouse have reported experiencing odd happenings, such as strange noises, feelings of being watched, and cold spots. One theory is that historical objects kept in the museum hold spiritual energy from the past, which contributes to the building's paranormal reputation. At least one local paranormal group has investigated the courthouse, with a story featured by 605 Magazine on Halloween.