Château de Ripaille Savoie

Built in 1434 and once home to the Dukes of Savoy, this turreted and ivy-clad castle was restored to its former glory in the late-19th century. It has a garden for summer dining and a 22-hectare vineyard (buy a bottle on site). It's 2km northeast of central Thonon. Inside the castle, visitors can explore chambers dressed in 19th-century style and watch a short educational film.