colle di val d'elsa, siena, tuscany, italy: the ancient covered alley via delle volte

colle val 039 elsa tuscany siena italy village dark alley delle volte medieval town ancient old passage covered walkway narrow mystery tuscan vault picturesque antique tunnel secret passageway wall vaults corridor mysterious arch arched street italian city building europe architecture mediaeval cityscape famous road monument fort fortress architectonic d'elsa italy: