powder magazine no. 13 of the vladivostok fortress on russian island

building tree ruins garden plant woodland chapel estate forest farm jungle village monastery waterway pasture hut 13 concrete casemated shelter coastal russia far east fortification landmark tourism travel wall powerful impregnable russian federation army protection abandoned uninhabited history military security protective summer fort defense vladivostok fortress island primorsky krai primorye tunnel rammed betonites powder cellar projectile storage cape crew rocky