Best things to do in Cogne

Make your way up a trail through nature and scenic views to reach Lillaz Waterfalls. Walk from the village and follow the path around geological exhibits, through pine trees, and along a stream. Head strait to the top of the falls, or stop off at one of the many viewing points for different angles along the way. Prepare for slightly steeper steps near the end. Have a picnic at the top, and even drink from the cold, clear water. From the top you can go down the other side by crossing a bridge over the fall. Keep your eyes open for interesting wildlife on the way.

Rifugio Vittorio Sella (quoted as Refuge Victor Sella in French sources) is a mountain hut in the Alps in Aosta Valley, Italy.

Sant'Orso, or Saint-Ours, is a collegiate church in Aosta, northern Italy, dedicated to Saint Ursus of Aosta. The original church had a single hall, delimited by a semicircular apse. It was entirely rebuilt during the 9th century, during the Carolingian age. Later, bishop Anselm of Aosta further renovated the church, introducing a basilica plan with three naves with wooden trusses. These were replaced by Gothic cross vaults in the 15th century.
The church has a nave and two aisles divided by quadrangular pillars.
The vault was rebuilt in the 15th century. Fragments of a Romanesque series of paintings are preserved in good condition in the space between the current vault and the original ceiling. These portray scenes from the New Testament as well as a martyrdom. Stylistically they resemble the bright colours and strongly marked outlines of some of the frescoes at the Galliano Basilica near Cantù. In the right aisles is a chapel houseing the altar of St. Sebastian, also with frescoes (15th century).
The cloister has historiated capitals depicting the life of Ursus. 37 of the 42 original capital remains: they were originally in white marble, though now they mostly appear in dark gray color aftery they were washed with ash paint.

Admire the marble "Porta dello Zodiaco," a 12th-century masterpiece, at Sacra di San Michele. Until recent times, skeletons of dead monks were visible at this large religious complex atop of Mount Pirchiriano. You can still walk up the Stairway of the Dead, which is flanked by arches and tombs. Explore the grounds of the Romanesque church and discover ruins from a monastery and an ancient church. After the winding drive to this area, you'll need to take a short, steep walk up from the parking lot. You must wear modest clothing to enter; you can borrow a shawl to cover your shoulders.