Guédelon Castle represents a unique medieval construction project begun in 1997 near Moutiers-en-Puisaye in Burgundy's Yonne département. Built entirely using authentic 12th and 13th-century methods and materials, the castle features traditional fortifications, defensive towers, seigniorial quarters, a chapel, and rampart walks. The site employs specialized artisans—quarrymen, stonemasons, carpenters, blacksmiths, tilers, weavers, and rope makers—creating a living archaeological demonstration. Visitors witness genuine medieval building techniques that reveal how castles were constructed centuries ago. Set deep in a forest south of Paris, Guédelon serves as both an educational experience and architectural landmark, drawing hundreds of annual visitors interested in medieval history and authentic heritage craftsmanship.