Visitors to the Castle of Simiane la Rotonde are taken back a thousand years into the history of a monument built on the site of a former Roman oppidum. Unique place in Provence, the great ceremonial chamber of the "Rotonde" with its magnificient ribbed cupola opening into an occulus with a sculpted wreath of flowers. The capitals of the pillars separating 12 arches round the wall are decorated with expressive stone masks from a symbolic medieval bestiary. Exhibitions of paintings, drawings or sculpture are regularly renewed each season. Every summer, in August, an early music festival is held in this beautiful room which once welcomed troubadours. The Sainte Victoire aromatherapy laboratory is situated in the South wing of the Castle. It offers an introduction to the benefits of aromatic essential oils. The Castle is now the property of the commune and has been listed as an Historic Monument since 2000.