A piece of architectural history resides on the east side of International Market Square. Designed by a Munsingwear engineer, the Double Helix staircase is a marvel of engineering: two separate staircases that intertwine, creating the illusion of a single path. Its unique design places it in rare company, alongside similar structures in The Vatican and Versailles, France. #DoubleHelixStaircase #ArchitecturalMarvel #MunsingwearHistory #HistoricBuilding #MinneapolisArchitecture #StaircaseDesign