Château de Goulaine is a 16th and 17th-century castle built of tuffeau stone in Haute-Goulaine, Loire-Atlantique, blending medieval fortress remains with Renaissance architecture. Originally constructed as a defensive structure protecting the border between the Duchy of Brittany and the Kingdom of France, the castle has been home to the Goulaine family for over a thousand years, with the property strengthened in the 12th century by Jean de Goulaine, captain of Nantes, against Norman attacks. Listed as a historical monument since 1913, the château is located 10 kilometers from Nantes and now welcomes visitors to explore its cultural offerings including one of France's oldest operating vineyards producing Muscadet wines with tastings, and historical exhibitions celebrating local heritage.