Ключевые слова: abandoned, adit, architecture, armored, army, bomb, building, bunker, catacomb, cold, command, communication, concrete, construction, corridor, creepy, danger, dark, decay, defending, door, drainage, fear, history, industrial, interior, military, mine, nuclear, old, passage, radioactive, room, russia, secret, sewer, shelter, soviet, steel, strategic, subway, tunnel, vault, vaulted, war, weathered,