Built along the Marta river roughly 1 km from its source where it flows out Bolsena lake, this medieval construction straddles the river and was designed to catch eels and other fish thanks to a system of grates, originally made from canes, which gave the building its name, and later from metal. Records documenting the economic and historical importance of the site date back to the early Middle Ages. Today the Cannara is a tourist attraction, thanks to its owners, whose careful restoration project has given the ancient building  a new lease on life and its attractive botanical garden with a wide variety of plant and flowers representing a perfect balance land and water