Visit the most renowned castles in the Loire Valley—aka French château country—on a day trip from Tours. Château de Chambord are known for their Renaissance architecture and architect Leonardo da Vinci. With a knowledgeable guide, enjoy views from little-known panoramic spots, and hear historical details and amusing anecdotes about the French kings and other nobles who have lived here. As a bonus, enjoy a gourmet break and a glass of local wine away from the crowds at a private, family-owned château.