Although privately owned, you can visit the chateau on a few days each year, details of which can be found here. It is a very fine building in the truly grand Loire style. It was built by Pierre d'Amboise, Bishop of Poitiers in the fifteenth century.
The village of Dissay has a slightly sad and down-at-heel feel to it. Or at least it did on the day we passed through. Maybe the grey skies and showers didn't help to make it look more appealing.