Some of the buildings of the ancient village of Nuisement-aux-Bois, which was swallowed up by water, have been reconstructed in this open-air museum. Centred on the old church, which remains consecrated to this day, they are intended to preserve the heritage of this part of the Champagne region: "la Champagne humide". In the Lardin Barn, a film introduces you to the Der region. The Machelignots Barn brings together the arts and traditions of the Champagne region; the school and town hall building houses the Maison de la Nature. You can sample local produce in the Blacksmith's House.