Fort Saint-Jean is a fortification at the North-Western end of the Old Port, built in 1660 by Louis XIV. The fort also hosts the Museum "Musée des Civilisations de l'Europe et de la Méditerranée", but the fortification itself is accessible to the public free of cost, and worth a visit. You can walk through the old fortifications, stroll through a small park, enjoy the view on the Old Port or on the sea, or walk over the free-hanging bridges to the museum or the Church Saint-Laurent. The Fort also offers a 10min video show about the history of Marseille and the Fort.