Francesco ColluraFrancesco Collura is an independent scholar who has conducted historical-archaeological research for more than 25 years. Geographically, his main area of interest has always been that of the Nebrodi Mountains in northern Sicily and in particular the erritories of the ancient cities of Halaesa, Kale Akte, Apollonia and Halontion, which remained largely unexplored until recent decades. Read More Read Less