colle di val d& x27;elsa, siena, tuscany, italy: the ancient city walls and the city gate

ages ancient and antique architecture bastion bridge building bulwark castle city clouds colle defense defensive delsa doorway elsa entrance famous fort fortification fortified fortress francigena gate historic historical italian italy landmark medieval mediterranean middle monument nova old picturesque porta renaissance siena sky stone stronghold tower town tuscan tuscany val via wal6 wall walls