Château de Chaumont-sur-Loire, founded in the 10th century by Odo I, Count of Blois, is a stunning fortress with a rich history. Rebuilt in the 15th century by Charles I d'Amboise, the castle blends medieval and Renaissance architectural styles. It has been a protected historic monument since 1840, preserving its impressive towers, moats, and grand interiors. In 1938, the château was handed over to the French state, and it is now open to the public. Today, it hosts the International Garden Festi