The Centre International du Vitrail (the International Stained-Glass Centre) stands near the cathedral, in the Enclos de Loëns - Loëns Enclosure - where, in the 12th century, the canons of the Cathedral set up their tithe barn and stocked corn and wine.

The Cellier de Loëns (the Löens Cellar), with its three distinctive, half-timbered gables, is classified Historical Monument.
Built around 1200, "la salle basse" – the cellar or lower room – consists of three naves with intersecting ribbed vaults, which stands on 12 pillars bearing sculpted capitals.
The upper level (ground-floor) reflects the shape of the three naves and has an impressive wooden roof structure.

From the 14th century, this extraordinary building housed a Court of Justice (the poet Clément Marot was incarcerated here for heresy). It became "Maison de Conciliation" – House of Arbitration – during the French Revolution, a Military Supplies store and then Municipal Store. It even served as a cinema, screening the pioneering films of the Lumière Brothers!

The Cellier de Loëns became home to the International Stained-Glass Centre in 1980. Stained-glass windows, from the Middle Ages to today, are on show, offering a pleasant journey through a world where light plays through coloured glass.