Saint-Nicolas Church, Hérémence

The Valère Basilica, whose first church was erected in the 12th century, is a major architectural work that harmoniously combines the Romanesque and Gothic styles. Since 1987, the entire Valère site has undergone numerous restorations. The organ of the basilica, probably built between 1435 and 1437, is the oldest playable organ in the world.

The cathedral of Sion dates from the 7th century. The first cathedral burned down in 1010 and a second cathedral was built in the Romanesque style. The present cathedral was only built at the end of the turn between the 15th and 16th centuries, however, the 12th century Romanesque bell-tower-porch has been preserved.

The church of Saint-Léger, commonly known as the church of Basse-Nendaz, dates back to the end of the 9th or the beginning of the 10th century. However, the present structure of the church owes much to a renovation in the 1960s. The original chapel, which is the oldest part of the building, now serves as a crypt.