San Miguel de Aralar Sanctuary was built in 1032 over the remains of 9th century temple and consecrated in 1074, during the reign of Sancho IV. The Romanesque church was built in two phases, the first comprising the area of apses. It was enlarged in the 12th century with three naves and narthex of interior portico.
Vufflens castle was built in 1425 on the site of a previous medieval castle by Henri de Colombier. It is the most significant example of a small group of fortified Romandy castles from the middle ages, characterised above all by its brick construction. In 1530, it was set on fire by Bernese troops. In 1641 it was acquired by the de Senarclens family. The castle is currently privately owned and cannot be visited.
A pleasant 30 minute-walk through the vineyards between Vufflens-le-Château and Denens, offers a stunning view of this magnificent castle, the lake and the Mont-Blanc.