the ruins of the casemates of the ancient russian fortress in vysotsk, leningrad region, russia

abandoned ancient area background baltic bay boulders building caponier casemate coastal construction day defense demolish desolate district dungeon finland fort fortification fortified fortress granite gulf heritage hill island isthmus karelian landmark landscape leningrad monument nature oblast outdoors ruin ruins russia russian sea shaft shore stones structure sun trangsund travel trongzund uuras vyborg vyborgsky vysotsk wall war