fortress ruins in romania

aged ages ancient archaic architectural architecture bastion battle battlement blue brick broken building built bulwark buttress cap citadel constructed construction crumbling decayed decrepit defence defend defense defensive derelict deteriorated dilapidated dolosman empty europe exterior fort fortification fortified fortress fragment grass guard high hill historic historical history medieval middle military old protect protection relics remains remnants rock rocks romania ruins safeguard security shell shield skeleton sky stone stronghold structure wall