Verona is a city an provincial capital in Veneto, Northern Italy. The ancient town and the center of the modern city are in a loop of the Adige River near Lake Garda. Because of this position, the areas saw regular floodings until 1956, when the Mori-Torbole tunnel was constructed, providing 500 cubic meters of discharge from the Adige river to Lake Garda when there was danger of flooding. The tunnel reduced the risk of flooding from once every seventy years to once every two centuries. Geographic history of Verona is plains and small mountain areas.