Eglise romane Saint-Martin-la-Vallée

Set below the hill on which Semur's fortress was built, this small 11th-century Romanesque church with its side bell tower (unique in the Brionnais region) was Semur's first church, before the collegiate church was built. It retains wall paintings dating from the 12th to 16th centuries. It contains murals dating from the 12th to 16th centuries.