dark gloomy fictional fantasy medieval fortress in the hills or mountains

old fortress architecture medieval castle landscape ancient landmark building travel stone tower europe tourism history historical fort historic wall mountain outdoor sky view background nature fantasy fortification famous hill rock heritage beautiful exterior town fairytale mountains stronghold kingdom palace city forest dark destination dungeon temple magical religion catacombs towers mystic gate citadel hills magic scenery ruins romania legend scary antique prison monument spooky mystical masonry burg middle ages gothic misty structure fortifications halloween monastery crypt occult chapel fear gloomy