If you're curious about how wine gets its flavor or exactly what tannins are, check out Chateau de Ligre. The trained staff will provide the answers to all your questions — and maybe even offer you a sample!
When you've spent some time at this wine-making establishment in Marcay, why not make your way to Château du Rivau, Royal Fortress of Chinon, and Forteresse Royale de Chinon? They're not far from Chateau de Ligre and also popular with tourists.