This is the smallest region in Italy with the highest mountains in Europe. The woods and valleys of the Gran Paradiso National Park and the peaks of Mont Blanc, Mount Cervino and Mount Rosa are a national treasure of inestimable value and its old towns and medieval castles are of great historical interest. The excellently run hotel industry in the Val d’Aosta, and in particular in Courmayeur, make this a favourite destination for winter sports enthusiasts.