Churches and places of worship Chiesa collegiata di Sant'Orso The collegiate church of Saints Peter and Orso constitutes, together with the Cathedral of Aosta, the most important testimony of the history of sacred art in Valle d'Aosta. Of particular interest are the ancients Ottonian frescoes preserved between the roof and the cover of the central nave, and the cloister with its magnificent medieval capitals.
Churches and places of worship Cattedrale di Aosta It dates back to the fourth century AD and has a structure with a Latin cross plan with three naves and a small cloister. Made in different architectural styles: Romanesque, Renaissance and Neoclassical, it houses interesting frescoes from the eleventh century.
Churches and places of worship Chiesa di Santo Stefano The Church of Santo Stefano located between Jean-Laurent Martinet street and via abbé Joseph-Marie Trèves was renovated in the 18th century on the basis of another church. Inside there is a wooden statue of St. Christopher.