The patron of Morgex is Blessed Guglielmo de Léaval, celebrated on 7 February. The town's parish church, dedicated to Santa Maria Assunta, has a Baroque altar and frescoes from between the 15th and 16th centuries; beside it stands the parish museum of sacred art, which holds, among other things, some objects that belonged to the beato.
Morgex, in the Aosta Valley, also keeps other traces of its past: the Tour de l'Archet, the Bozel fortified house and the Pascal de la Ruine castle, together with the Marais nature reserve, a protected wetland in the valley floor.
