Built in 1602 to defend the coast against Spain, the citadel dominates the hillside overlooking St-Tropez to the east. The views are fantastic, as are the exotic peacocks wandering the grounds. Its dungeons are home to the excellent Musée de l’Histoire Maritime, an interactive museum that traces the history of humans at sea through fishing, trading, exploration, travel and the navy. The particular focus, of course, is Tropezienne and Provençal seafarers.