Château des Ducs de Bretagne
This 15th-century fortress marks the spot where Brittany's independence effectively ended: the Edict of Nantes was signed here in 1598, granting religious tolerance across France. The exterior is all military purpose, with stout granite ramparts and a moat you cross via a drawbridge. Step through the gate and the mood shifts completely: an elegant white tufa Renaissance courtyard with carved loggias, dormer windows, and a grand ceremonial well. The rampart walk is free and circles the entire fortress, offering views across the city and down into the courtyard. Inside, the Nantes History Museum occupies 32 rooms across multiple floors, tracing the city from its ducal origins through the slave trade (Nantes was France's largest slaving port) to the present. Open Tuesday to Sunday from 10:00 AM to 6:00 PM, closed Mondays. Museum entry costs €8. The courtyard and ramparts alone are worth 30 minutes, and they cost nothing.
Learn more about Château des Ducs de Bretagne →15 min walk



