Aosta is the main city of Aosta Valley in Italian Alps, and is towards the north-northwest of the city of Turin. This is located close to the Italian side access to tunnel of the Mont Blanc, where the the Dora Baltea meets Buthier to converge which in turn is  towards the intersection of the routes of the Great as also the  Little St. Bernard.

Aosta is an ancient settlement that later was the hub of the Salassi, a great number of whom were either killed or condemned to slavery in 25 BC by the Romans.  Its strategic location at the meeting of the rivers and also the St Bernard passes make it an important military camp built on the lines of that of a Military Location of the Romans.

The ancient remain of the town still exist.  The primeval town walls of the place Augusta Praetoria Salassorum now are conserved virtually as a whole hemmed in a rectangular location. These walls are of around a height of 6.5 meters and are made of concrete with little blocks of stone on the face. They are around 2.75 meters thick at the bottom and 1.83 meters at the top.
The towers are standing at an angle to the enceinteso also  there are others that are spaced out, two on every one of the four ancient gates.  There are totally twenty towers.  Of the twenty towers, only six have actually been conserved and are in good shape.

·    Tour du lépreux, This got its name after the leper who in the 17th century was jailed in this tower. There is a novel based on this tower which is called Le lépreux de la cité d’Aoste, written by Xavier de Maistre.
·    Tour Neuve built in the 13th century
·    Tour du Pailleron.
·    Tower of Bramafan, was constructed over a Roman stronghold of the 11th century. It was home to the Savoy viscounts.
·    Tour du Baillage.
·    Tour Fromage (”Cheese Tower”).

There are other ancient sights that also arouse interest:

The Cathedral that was constructed in  4th century and eventually a new construction took it’s place in the 11th century which was dedicated to Madonna. This is part of the Roman Forum.
Also, The Romanesque-Gothic Sant’Orso (Saint-Ours). The most reminiscent trait would be the cloister, which is accessed via the hall that exists towards the left side of the frontispiece.  It is devoted to Ursus of Aosta.

The Saint-Bénin College was built by the Benedictines around the year 1000. It is presently an exhibition centre.