isometric low poly japanese castle.

outdoor ancient graphic tower background land construction fairytale samurai cartoon fortification grey island kingdom rock culture building 3d exterior fortified cityscape house cute stone royal stronghold japanese fort beautiful decorative isolated landscape block tourism element nature wall citadel flag architecture business place castle game travel roof estate journey fantasy green gate illustration concept high city door medieval east defence frame king fortress temple facade isometric object historic japan palace design asian vector art icon old built symbol flat