59 years stood at 84%, which is higher than the national average at 82.2%. There were 46% of people employed versus 19.1% of retirees, whose number is slightly higher than the average national (18.2%). There were 21.9% of people of school age and 13% of people without activity. Businesses in the agglomeration Alcan (ex-Pechiney): Currently, an important activity of production of aluminium by electrolysis of alumina still exists thanks to a Trimet France factory. The factory celebrated its 100th anniversary in 2007. Commerce With tourism growing through the winter sport resorts and the proximity of the major passes of the Alps and of the Vanoise National Park, local commerce is a new dynamic. Local culture and heritage Places and monuments Medieval period Le Tabellion or Correrie: House of the judge Corrier, appointed jointly by the Count of Savoy and the Bishop. Built after the revolt of Arves in 1326. The Rue du Collège: A medieval street, last example of shops from the 15th and 16th centuries. Contemporary period The Gérard Philipe Theatre: Typical Architecture of the 1930s. Religious monuments The : A singular mixture of styles and periods. Its origin dates back to the 11th century. Classified as an historical monument in 1906. The crypt: Built in the early Romanesque period and rediscovered in 1958. The choir stalls in the cathedral: Completed in 1498, this masterpiece of Gothic art in walnut is attributed to Pierre Mochet. The cloister: located between the cathedral and the refectory of the canons, its origin dates back to 1450. Classified as an historical monument in 1933. The bell tower: A former capitular keep having lost its Gothic spire and its four pinnacles in 1794. Notre-Dame church: The old parish church, now closed to the public, its origin dates back to the 11th century. The bell tower, today separated from the church, was the entrance. Palace of the Bishops of Maurienne or former bishop: redesigned in the 18th century and classified municipal building since 1905. The grand salon is a beautiful example of Baroque art. Chapel of Bonne Nouvelle: A pilgrimage place in Baroque style with ex-votos. Orientation table. Chapel of St. Joseph's college (137, Rue du Collège). A Baroque chapel situated in St. Joseph's college (formerly college Lambertain, founded in 1534) Green spaces The Clos Carloz and the recreation area of the Combe are the main green spaces in the city. There is also the