The city of Aosta, county seat of the autonomous region of Aosta Valley, represents a significant evidence of the ancient Roman civilisation. Indeed, Aosta is the second city, after Rome, with the major number of still visible ancient Roman remains, reason why it is also called "the Rome of the Alps".

The city of Aosta is located in the centre of Aosta Valley, 583 metres above sea level. It rises up among many Roman ruins and majestic mountains; Becca di Nona, Monte Emilius, Pointe de Chaligne and Becca di Viou are the mountains that surround it.