vertical view of ancient castle battlements-protective tooth d parapets with merlons and crenels for soldiers to shoot from

ancient archeology architecture arrow arrowslit battlement battlements battlementsprotective brickwork building castle caucasus clouds coimbra crenel crenelle crenels defence defense europe european fortification fortress georgia historic historical history jvari landmark landscape loop medieval merlon merlons monastery old parapets penela rock rounded ruin scenic shaped shoot sky slit soldiers stone stronghold tbilisi tooth tourism travel vertical view wall war watchtower window