Sights include the castle, built by Carlo Ottavio Benso in 1712–20. It houses furnitures and memories of the families who lived there, including a vase donated by Napoleon III of France to Camillo Benso, Conte di Cavour in 1856. Nearby is a 23-hectare (57-acre) English landscape garden built under Cavour's father, Michele Giuseppe Francesco Antonio Benso, 4th Marquess of Cavour (1781-1850), in the early 18th century.