Milestone A Roman milestone engraved in the name of the Emperor Constantine. This milestone stands against the chancel of the parish church and indicates the distance to the centre of Rome. Opening hours Freely available Suggestions The La Bâtiaz district The La Bâtiaz district is one of Martigny's historic areas, found at the foot of the famous castle with the same name. François Fine Mill This mill, which is still working, enables visitors to understand how bread is produced. Espace Saint Michel L'Espace Saint-Michel provides an admirable setting with its light and intimacy.