syracuse - interior vaults of the ancient maniace castle (castello maniace) on island of ortygia in syracuse leading to window

window arch column archway vault tunnel maniace castle gate walls basement arcade bridge dungeon vaults baroque interior syracuse stone rock wall sicily unesco world heritage site citadel limestone sandstone building fortress medieval fort castello attraction tourism monument italy architecture ancient town italian ortygia europe ortigia mediterranean sea siracusa sarausa sicilia island city sicilian