Behind the façade of this 13C-17C mansion, with its sturdy stone base, half timbers and gables, this museum displays paintings, engravings and maps relating to the history of the city and the pomp and ceremony of its coronations. The apartments boast a refined decor and are decorated with beautiful wood panelling and antique furniture which once belonged to the local baron Hugues Krafft, a patron of the arts who lived here until his death in 1935. One of the rooms displays an exceptional collection of engravings by Dürer.