The Minnesota State Capitol is reportedly haunted by several spirits, including architect Cass Gilbert and Civil War commander William Colvill, whose apparitions have been seen near his bronze likeness in the rotunda. Unexplained occurrences such as cold gusts, strange noises, mists, and being locked in have also been reported, with particularly eerie activity noted in Room 217. Ghostly figures, including those of deceased senators and governors, have been seen within the building. Architect Cass Gilbert is said to wander the halls, and the spirit of Civil War commander William Colvill has been spotted near his statue. Visitors and staff have reported experiencing cold gusts of air, unexplained noises, and mists that quickly dissipate. There are tales of people being inexplicably locked inside rooms and experiencing unusual activity in specific areas, such as Room 217. A custodian reported seeing an apparition pass through a wall in the basement corridors and offices. The architect of the Minnesota State Capitol is said to roam the building's halls. The spirit of the Civil War commander has been seen standing near his bronze likeness in the rotunda. Judson Bishop: This Civil War veteran is also mentioned as one of several spirits at the capitol.