Fortress Guedelon (Long-term Documentary), France, 2010 (12)Owner Reinhard Kungel Typ Video Id RKL006496experimenttourist destinationMiddle AgesYonneFranceGuédelon CastleBourgogne-Franche-ComtéTreigny2010High Middle Agescolorcraftcastleconstruction sitetourist attractionexperimental archaeologylong-term experiment13th century