The construction of the main tower of the castle of Guédelon and the ornamentation of the seigniorial dwelling provided an opportunity for the stonemasons and masons to give the full measure of their talent. In 2007, for the tenth anniversary of the project, a gathering of stonemasons was organized. It brought together craftsmen from all over France and Europe as part of a limestone cutting program on the construction site of the castle. At the same time, the first practical stone-cutting educational workshop was offered to children and adults.