The Poenine Way A Roman road At the entrance to the ancient town, the Great Saint Bernard road was covered with impressive paving stones still visible today. Opening hours Freely available Suggestions Bâtiaz Castle From the top of its tower, this Middle Ages fortification provides the most beautiful views of the town of Martigny. Semblanet's Mill This historic mill is still working. A single waterwheel activates about one hundred different mechanisms. Saint-Maurice Abbey Discover 1500 years of history via an outstanding visit to the Royal Abbey of St Maurice.