Fortress Guedelon (Long-term Documentary), France, 2010 (13)Owner Reinhard Kungel Typ Video Id RKL006490experimenttourist destinationMiddle AgesYonneFranceGuédelon CastleBourgogne-Franche-ComtéTreigny2010High Middle Agescolorcraftcastleconstruction sitetourist attractionexperimental archaeologylong-term experiment13th century