rumeli hisari

15th architecture asia asian bogazkesen building buildings bush castle castles century cloud clouds crenelated crenelation crenellated crenellation cumulus curtain defence defensive district east eastern europe european fifteenth fort fortress fortresses forts garden grass grounds hisari historic istanbul middle neighbourhood old rumeli rumelian rumelihisari sariyer seat seating seats stair stairs step steps stone structure structures tourism tower towers tree turkey turkish turret wall walls