France, Haute Savoie, Annecy, view of the Duingt peninsula, the château de Duingt, and the lake Formerly called châteauvieux, the château de Duingt is built in front of the Roc de Chère on the shores of Lake Annecy It is an architectural gem that is located on a peninsula on the border between the Grand Lac and the Petit Lac d'Annecy This medieval fortress has existed for almost a millennium and offers summer cultural activities(aerial view Stock Photo